MPI 4.2L Oil Sensor Question
06-23-2004, 12:34 AM
#41
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
Mike according to my manual, the extra wire was for a low oil pressure shut
down ckt. Not sure how or if it worked though
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D8604B.F95B1084@sympatico.ca...
> I don't know what engine this is out of, but the failed Ford excuse for
> an emissions computer on the Jeep 4.2 does not use any oil pressure
> sensors.
>
> Stock you have one for the gauge on the dash only.
>
> The oil switch below the pressure sensor is used for the choke and
> manifold intake heater coil. It is switched on with oil pressure only.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Jeepers wrote:
> >
> > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> >
> > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > >
> > > > > Nope..
> > > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > I'm just finishing my MPI install on my project. Can anyone tell
me
> > > what
> > > > > > to do with the oil pressure sensor? I have a small brass
manifold
> > > > > > sticking out of the block. I know one hole is for the oil gauge
and
> > > the
> > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > pressure?
> > > >
> > > > So I plug the hole and toss the sensor?
> > >
> > >
> > > I am not sure I would advixe you to toss the sensor, YOU need to know
what
> > > the oil pressure is doing, just the ECM doesn't need to know.
> >
> > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > the wires in the loom from the MPI on the engine, there are NO others
> > installed yet. I had just assumed that the new ECM would want the oil
> > info just as the old one had. Painless is gonna send me the new looms
> > and wires.
> >
> > As for the oil pressure, there were two in one boss, one was for the old
> > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > isn't interested in it.
down ckt. Not sure how or if it worked though
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D8604B.F95B1084@sympatico.ca...
> I don't know what engine this is out of, but the failed Ford excuse for
> an emissions computer on the Jeep 4.2 does not use any oil pressure
> sensors.
>
> Stock you have one for the gauge on the dash only.
>
> The oil switch below the pressure sensor is used for the choke and
> manifold intake heater coil. It is switched on with oil pressure only.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Jeepers wrote:
> >
> > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> >
> > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > >
> > > > > Nope..
> > > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > I'm just finishing my MPI install on my project. Can anyone tell
me
> > > what
> > > > > > to do with the oil pressure sensor? I have a small brass
manifold
> > > > > > sticking out of the block. I know one hole is for the oil gauge
and
> > > the
> > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > pressure?
> > > >
> > > > So I plug the hole and toss the sensor?
> > >
> > >
> > > I am not sure I would advixe you to toss the sensor, YOU need to know
what
> > > the oil pressure is doing, just the ECM doesn't need to know.
> >
> > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > the wires in the loom from the MPI on the engine, there are NO others
> > installed yet. I had just assumed that the new ECM would want the oil
> > info just as the old one had. Painless is gonna send me the new looms
> > and wires.
> >
> > As for the oil pressure, there were two in one boss, one was for the old
> > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > isn't interested in it.
06-23-2004, 10:02 AM
#42
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
Does the MPI use it for a safety shut down?
If so, then the OP sure needs it.
Mike
Richard Harris wrote:
>
> Mike according to my manual, the extra wire was for a low oil pressure shut
> down ckt. Not sure how or if it worked though
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40D8604B.F95B1084@sympatico.ca...
> > I don't know what engine this is out of, but the failed Ford excuse for
> > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > sensors.
> >
> > Stock you have one for the gauge on the dash only.
> >
> > The oil switch below the pressure sensor is used for the choke and
> > manifold intake heater coil. It is switched on with oil pressure only.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jeepers wrote:
> > >
> > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > >
> > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > >
> > > > > > Nope..
> > > > > >
> > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > I'm just finishing my MPI install on my project. Can anyone tell
> me
> > > > what
> > > > > > > to do with the oil pressure sensor? I have a small brass
> manifold
> > > > > > > sticking out of the block. I know one hole is for the oil gauge
> and
> > > > the
> > > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > > pressure?
> > > > >
> > > > > So I plug the hole and toss the sensor?
> > > >
> > > >
> > > > I am not sure I would advixe you to toss the sensor, YOU need to know
> what
> > > > the oil pressure is doing, just the ECM doesn't need to know.
> > >
> > > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > > the wires in the loom from the MPI on the engine, there are NO others
> > > installed yet. I had just assumed that the new ECM would want the oil
> > > info just as the old one had. Painless is gonna send me the new looms
> > > and wires.
> > >
> > > As for the oil pressure, there were two in one boss, one was for the old
> > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > isn't interested in it.
If so, then the OP sure needs it.
Mike
Richard Harris wrote:
>
> Mike according to my manual, the extra wire was for a low oil pressure shut
> down ckt. Not sure how or if it worked though
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40D8604B.F95B1084@sympatico.ca...
> > I don't know what engine this is out of, but the failed Ford excuse for
> > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > sensors.
> >
> > Stock you have one for the gauge on the dash only.
> >
> > The oil switch below the pressure sensor is used for the choke and
> > manifold intake heater coil. It is switched on with oil pressure only.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jeepers wrote:
> > >
> > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > >
> > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > >
> > > > > > Nope..
> > > > > >
> > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > I'm just finishing my MPI install on my project. Can anyone tell
> me
> > > > what
> > > > > > > to do with the oil pressure sensor? I have a small brass
> manifold
> > > > > > > sticking out of the block. I know one hole is for the oil gauge
> and
> > > > the
> > > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > > pressure?
> > > > >
> > > > > So I plug the hole and toss the sensor?
> > > >
> > > >
> > > > I am not sure I would advixe you to toss the sensor, YOU need to know
> what
> > > > the oil pressure is doing, just the ECM doesn't need to know.
> > >
> > > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > > the wires in the loom from the MPI on the engine, there are NO others
> > > installed yet. I had just assumed that the new ECM would want the oil
> > > info just as the old one had. Painless is gonna send me the new looms
> > > and wires.
> > >
> > > As for the oil pressure, there were two in one boss, one was for the old
> > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > isn't interested in it.
06-23-2004, 10:02 AM
#43
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
Does the MPI use it for a safety shut down?
If so, then the OP sure needs it.
Mike
Richard Harris wrote:
>
> Mike according to my manual, the extra wire was for a low oil pressure shut
> down ckt. Not sure how or if it worked though
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40D8604B.F95B1084@sympatico.ca...
> > I don't know what engine this is out of, but the failed Ford excuse for
> > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > sensors.
> >
> > Stock you have one for the gauge on the dash only.
> >
> > The oil switch below the pressure sensor is used for the choke and
> > manifold intake heater coil. It is switched on with oil pressure only.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jeepers wrote:
> > >
> > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > >
> > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > >
> > > > > > Nope..
> > > > > >
> > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > I'm just finishing my MPI install on my project. Can anyone tell
> me
> > > > what
> > > > > > > to do with the oil pressure sensor? I have a small brass
> manifold
> > > > > > > sticking out of the block. I know one hole is for the oil gauge
> and
> > > > the
> > > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > > pressure?
> > > > >
> > > > > So I plug the hole and toss the sensor?
> > > >
> > > >
> > > > I am not sure I would advixe you to toss the sensor, YOU need to know
> what
> > > > the oil pressure is doing, just the ECM doesn't need to know.
> > >
> > > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > > the wires in the loom from the MPI on the engine, there are NO others
> > > installed yet. I had just assumed that the new ECM would want the oil
> > > info just as the old one had. Painless is gonna send me the new looms
> > > and wires.
> > >
> > > As for the oil pressure, there were two in one boss, one was for the old
> > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > isn't interested in it.
If so, then the OP sure needs it.
Mike
Richard Harris wrote:
>
> Mike according to my manual, the extra wire was for a low oil pressure shut
> down ckt. Not sure how or if it worked though
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40D8604B.F95B1084@sympatico.ca...
> > I don't know what engine this is out of, but the failed Ford excuse for
> > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > sensors.
> >
> > Stock you have one for the gauge on the dash only.
> >
> > The oil switch below the pressure sensor is used for the choke and
> > manifold intake heater coil. It is switched on with oil pressure only.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jeepers wrote:
> > >
> > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > >
> > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > >
> > > > > > Nope..
> > > > > >
> > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > I'm just finishing my MPI install on my project. Can anyone tell
> me
> > > > what
> > > > > > > to do with the oil pressure sensor? I have a small brass
> manifold
> > > > > > > sticking out of the block. I know one hole is for the oil gauge
> and
> > > > the
> > > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > > pressure?
> > > > >
> > > > > So I plug the hole and toss the sensor?
> > > >
> > > >
> > > > I am not sure I would advixe you to toss the sensor, YOU need to know
> what
> > > > the oil pressure is doing, just the ECM doesn't need to know.
> > >
> > > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > > the wires in the loom from the MPI on the engine, there are NO others
> > > installed yet. I had just assumed that the new ECM would want the oil
> > > info just as the old one had. Painless is gonna send me the new looms
> > > and wires.
> > >
> > > As for the oil pressure, there were two in one boss, one was for the old
> > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > isn't interested in it.
06-23-2004, 10:02 AM
#44
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
Does the MPI use it for a safety shut down?
If so, then the OP sure needs it.
Mike
Richard Harris wrote:
>
> Mike according to my manual, the extra wire was for a low oil pressure shut
> down ckt. Not sure how or if it worked though
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40D8604B.F95B1084@sympatico.ca...
> > I don't know what engine this is out of, but the failed Ford excuse for
> > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > sensors.
> >
> > Stock you have one for the gauge on the dash only.
> >
> > The oil switch below the pressure sensor is used for the choke and
> > manifold intake heater coil. It is switched on with oil pressure only.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jeepers wrote:
> > >
> > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > >
> > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > >
> > > > > > Nope..
> > > > > >
> > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > I'm just finishing my MPI install on my project. Can anyone tell
> me
> > > > what
> > > > > > > to do with the oil pressure sensor? I have a small brass
> manifold
> > > > > > > sticking out of the block. I know one hole is for the oil gauge
> and
> > > > the
> > > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > > pressure?
> > > > >
> > > > > So I plug the hole and toss the sensor?
> > > >
> > > >
> > > > I am not sure I would advixe you to toss the sensor, YOU need to know
> what
> > > > the oil pressure is doing, just the ECM doesn't need to know.
> > >
> > > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > > the wires in the loom from the MPI on the engine, there are NO others
> > > installed yet. I had just assumed that the new ECM would want the oil
> > > info just as the old one had. Painless is gonna send me the new looms
> > > and wires.
> > >
> > > As for the oil pressure, there were two in one boss, one was for the old
> > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > isn't interested in it.
If so, then the OP sure needs it.
Mike
Richard Harris wrote:
>
> Mike according to my manual, the extra wire was for a low oil pressure shut
> down ckt. Not sure how or if it worked though
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40D8604B.F95B1084@sympatico.ca...
> > I don't know what engine this is out of, but the failed Ford excuse for
> > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > sensors.
> >
> > Stock you have one for the gauge on the dash only.
> >
> > The oil switch below the pressure sensor is used for the choke and
> > manifold intake heater coil. It is switched on with oil pressure only.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jeepers wrote:
> > >
> > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > >
> > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > >
> > > > > > Nope..
> > > > > >
> > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > I'm just finishing my MPI install on my project. Can anyone tell
> me
> > > > what
> > > > > > > to do with the oil pressure sensor? I have a small brass
> manifold
> > > > > > > sticking out of the block. I know one hole is for the oil gauge
> and
> > > > the
> > > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > > pressure?
> > > > >
> > > > > So I plug the hole and toss the sensor?
> > > >
> > > >
> > > > I am not sure I would advixe you to toss the sensor, YOU need to know
> what
> > > > the oil pressure is doing, just the ECM doesn't need to know.
> > >
> > > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > > the wires in the loom from the MPI on the engine, there are NO others
> > > installed yet. I had just assumed that the new ECM would want the oil
> > > info just as the old one had. Painless is gonna send me the new looms
> > > and wires.
> > >
> > > As for the oil pressure, there were two in one boss, one was for the old
> > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > isn't interested in it.
06-23-2004, 10:02 AM
#45
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
Does the MPI use it for a safety shut down?
If so, then the OP sure needs it.
Mike
Richard Harris wrote:
>
> Mike according to my manual, the extra wire was for a low oil pressure shut
> down ckt. Not sure how or if it worked though
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40D8604B.F95B1084@sympatico.ca...
> > I don't know what engine this is out of, but the failed Ford excuse for
> > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > sensors.
> >
> > Stock you have one for the gauge on the dash only.
> >
> > The oil switch below the pressure sensor is used for the choke and
> > manifold intake heater coil. It is switched on with oil pressure only.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jeepers wrote:
> > >
> > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > >
> > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > >
> > > > > > Nope..
> > > > > >
> > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > I'm just finishing my MPI install on my project. Can anyone tell
> me
> > > > what
> > > > > > > to do with the oil pressure sensor? I have a small brass
> manifold
> > > > > > > sticking out of the block. I know one hole is for the oil gauge
> and
> > > > the
> > > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > > pressure?
> > > > >
> > > > > So I plug the hole and toss the sensor?
> > > >
> > > >
> > > > I am not sure I would advixe you to toss the sensor, YOU need to know
> what
> > > > the oil pressure is doing, just the ECM doesn't need to know.
> > >
> > > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > > the wires in the loom from the MPI on the engine, there are NO others
> > > installed yet. I had just assumed that the new ECM would want the oil
> > > info just as the old one had. Painless is gonna send me the new looms
> > > and wires.
> > >
> > > As for the oil pressure, there were two in one boss, one was for the old
> > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > isn't interested in it.
If so, then the OP sure needs it.
Mike
Richard Harris wrote:
>
> Mike according to my manual, the extra wire was for a low oil pressure shut
> down ckt. Not sure how or if it worked though
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:40D8604B.F95B1084@sympatico.ca...
> > I don't know what engine this is out of, but the failed Ford excuse for
> > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > sensors.
> >
> > Stock you have one for the gauge on the dash only.
> >
> > The oil switch below the pressure sensor is used for the choke and
> > manifold intake heater coil. It is switched on with oil pressure only.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jeepers wrote:
> > >
> > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > >
> > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > >
> > > > > > Nope..
> > > > > >
> > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > I'm just finishing my MPI install on my project. Can anyone tell
> me
> > > > what
> > > > > > > to do with the oil pressure sensor? I have a small brass
> manifold
> > > > > > > sticking out of the block. I know one hole is for the oil gauge
> and
> > > > the
> > > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
> > > > > > > pressure?
> > > > >
> > > > > So I plug the hole and toss the sensor?
> > > >
> > > >
> > > > I am not sure I would advixe you to toss the sensor, YOU need to know
> what
> > > > the oil pressure is doing, just the ECM doesn't need to know.
> > >
> > > It's a frame off, ALL the sensors were pulled. There are presently ONLY
> > > the wires in the loom from the MPI on the engine, there are NO others
> > > installed yet. I had just assumed that the new ECM would want the oil
> > > info just as the old one had. Painless is gonna send me the new looms
> > > and wires.
> > >
> > > As for the oil pressure, there were two in one boss, one was for the old
> > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > isn't interested in it.
06-24-2004, 01:09 AM
#46
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
No my Mopar kit doesn't use the Op shutdown ckt.
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D98D67.2F551846@sympatico.ca...
> Does the MPI use it for a safety shut down?
>
> If so, then the OP sure needs it.
>
> Mike
>
> Richard Harris wrote:
> >
> > Mike according to my manual, the extra wire was for a low oil pressure
shut
> > down ckt. Not sure how or if it worked though
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40D8604B.F95B1084@sympatico.ca...
> > > I don't know what engine this is out of, but the failed Ford excuse
for
> > > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > > sensors.
> > >
> > > Stock you have one for the gauge on the dash only.
> > >
> > > The oil switch below the pressure sensor is used for the choke and
> > > manifold intake heater coil. It is switched on with oil pressure
only.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Jeepers wrote:
> > > >
> > > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > > >
> > > > > > > Nope..
> > > > > > >
> > > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > > I'm just finishing my MPI install on my project. Can anyone
tell
> > me
> > > > > what
> > > > > > > > to do with the oil pressure sensor? I have a small brass
> > manifold
> > > > > > > > sticking out of the block. I know one hole is for the oil
gauge
> > and
> > > > > the
> > > > > > > > other is for a sensor. Does the MPI ECM not need to know the
oil
> > > > > > > > pressure?
> > > > > >
> > > > > > So I plug the hole and toss the sensor?
> > > > >
> > > > >
> > > > > I am not sure I would advixe you to toss the sensor, YOU need to
know
> > what
> > > > > the oil pressure is doing, just the ECM doesn't need to know.
> > > >
> > > > It's a frame off, ALL the sensors were pulled. There are presently
ONLY
> > > > the wires in the loom from the MPI on the engine, there are NO
others
> > > > installed yet. I had just assumed that the new ECM would want the
oil
> > > > info just as the old one had. Painless is gonna send me the new
looms
> > > > and wires.
> > > >
> > > > As for the oil pressure, there were two in one boss, one was for the
old
> > > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > > isn't interested in it.
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D98D67.2F551846@sympatico.ca...
> Does the MPI use it for a safety shut down?
>
> If so, then the OP sure needs it.
>
> Mike
>
> Richard Harris wrote:
> >
> > Mike according to my manual, the extra wire was for a low oil pressure
shut
> > down ckt. Not sure how or if it worked though
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40D8604B.F95B1084@sympatico.ca...
> > > I don't know what engine this is out of, but the failed Ford excuse
for
> > > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > > sensors.
> > >
> > > Stock you have one for the gauge on the dash only.
> > >
> > > The oil switch below the pressure sensor is used for the choke and
> > > manifold intake heater coil. It is switched on with oil pressure
only.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Jeepers wrote:
> > > >
> > > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > > >
> > > > > > > Nope..
> > > > > > >
> > > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > > I'm just finishing my MPI install on my project. Can anyone
tell
> > me
> > > > > what
> > > > > > > > to do with the oil pressure sensor? I have a small brass
> > manifold
> > > > > > > > sticking out of the block. I know one hole is for the oil
gauge
> > and
> > > > > the
> > > > > > > > other is for a sensor. Does the MPI ECM not need to know the
oil
> > > > > > > > pressure?
> > > > > >
> > > > > > So I plug the hole and toss the sensor?
> > > > >
> > > > >
> > > > > I am not sure I would advixe you to toss the sensor, YOU need to
know
> > what
> > > > > the oil pressure is doing, just the ECM doesn't need to know.
> > > >
> > > > It's a frame off, ALL the sensors were pulled. There are presently
ONLY
> > > > the wires in the loom from the MPI on the engine, there are NO
others
> > > > installed yet. I had just assumed that the new ECM would want the
oil
> > > > info just as the old one had. Painless is gonna send me the new
looms
> > > > and wires.
> > > >
> > > > As for the oil pressure, there were two in one boss, one was for the
old
> > > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > > isn't interested in it.
06-24-2004, 01:09 AM
#47
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
No my Mopar kit doesn't use the Op shutdown ckt.
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D98D67.2F551846@sympatico.ca...
> Does the MPI use it for a safety shut down?
>
> If so, then the OP sure needs it.
>
> Mike
>
> Richard Harris wrote:
> >
> > Mike according to my manual, the extra wire was for a low oil pressure
shut
> > down ckt. Not sure how or if it worked though
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40D8604B.F95B1084@sympatico.ca...
> > > I don't know what engine this is out of, but the failed Ford excuse
for
> > > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > > sensors.
> > >
> > > Stock you have one for the gauge on the dash only.
> > >
> > > The oil switch below the pressure sensor is used for the choke and
> > > manifold intake heater coil. It is switched on with oil pressure
only.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Jeepers wrote:
> > > >
> > > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > > >
> > > > > > > Nope..
> > > > > > >
> > > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > > I'm just finishing my MPI install on my project. Can anyone
tell
> > me
> > > > > what
> > > > > > > > to do with the oil pressure sensor? I have a small brass
> > manifold
> > > > > > > > sticking out of the block. I know one hole is for the oil
gauge
> > and
> > > > > the
> > > > > > > > other is for a sensor. Does the MPI ECM not need to know the
oil
> > > > > > > > pressure?
> > > > > >
> > > > > > So I plug the hole and toss the sensor?
> > > > >
> > > > >
> > > > > I am not sure I would advixe you to toss the sensor, YOU need to
know
> > what
> > > > > the oil pressure is doing, just the ECM doesn't need to know.
> > > >
> > > > It's a frame off, ALL the sensors were pulled. There are presently
ONLY
> > > > the wires in the loom from the MPI on the engine, there are NO
others
> > > > installed yet. I had just assumed that the new ECM would want the
oil
> > > > info just as the old one had. Painless is gonna send me the new
looms
> > > > and wires.
> > > >
> > > > As for the oil pressure, there were two in one boss, one was for the
old
> > > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > > isn't interested in it.
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D98D67.2F551846@sympatico.ca...
> Does the MPI use it for a safety shut down?
>
> If so, then the OP sure needs it.
>
> Mike
>
> Richard Harris wrote:
> >
> > Mike according to my manual, the extra wire was for a low oil pressure
shut
> > down ckt. Not sure how or if it worked though
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40D8604B.F95B1084@sympatico.ca...
> > > I don't know what engine this is out of, but the failed Ford excuse
for
> > > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > > sensors.
> > >
> > > Stock you have one for the gauge on the dash only.
> > >
> > > The oil switch below the pressure sensor is used for the choke and
> > > manifold intake heater coil. It is switched on with oil pressure
only.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Jeepers wrote:
> > > >
> > > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > > >
> > > > > > > Nope..
> > > > > > >
> > > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > > I'm just finishing my MPI install on my project. Can anyone
tell
> > me
> > > > > what
> > > > > > > > to do with the oil pressure sensor? I have a small brass
> > manifold
> > > > > > > > sticking out of the block. I know one hole is for the oil
gauge
> > and
> > > > > the
> > > > > > > > other is for a sensor. Does the MPI ECM not need to know the
oil
> > > > > > > > pressure?
> > > > > >
> > > > > > So I plug the hole and toss the sensor?
> > > > >
> > > > >
> > > > > I am not sure I would advixe you to toss the sensor, YOU need to
know
> > what
> > > > > the oil pressure is doing, just the ECM doesn't need to know.
> > > >
> > > > It's a frame off, ALL the sensors were pulled. There are presently
ONLY
> > > > the wires in the loom from the MPI on the engine, there are NO
others
> > > > installed yet. I had just assumed that the new ECM would want the
oil
> > > > info just as the old one had. Painless is gonna send me the new
looms
> > > > and wires.
> > > >
> > > > As for the oil pressure, there were two in one boss, one was for the
old
> > > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > > isn't interested in it.
06-24-2004, 01:09 AM
#48
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
No my Mopar kit doesn't use the Op shutdown ckt.
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D98D67.2F551846@sympatico.ca...
> Does the MPI use it for a safety shut down?
>
> If so, then the OP sure needs it.
>
> Mike
>
> Richard Harris wrote:
> >
> > Mike according to my manual, the extra wire was for a low oil pressure
shut
> > down ckt. Not sure how or if it worked though
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40D8604B.F95B1084@sympatico.ca...
> > > I don't know what engine this is out of, but the failed Ford excuse
for
> > > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > > sensors.
> > >
> > > Stock you have one for the gauge on the dash only.
> > >
> > > The oil switch below the pressure sensor is used for the choke and
> > > manifold intake heater coil. It is switched on with oil pressure
only.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Jeepers wrote:
> > > >
> > > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > > >
> > > > > > > Nope..
> > > > > > >
> > > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > > I'm just finishing my MPI install on my project. Can anyone
tell
> > me
> > > > > what
> > > > > > > > to do with the oil pressure sensor? I have a small brass
> > manifold
> > > > > > > > sticking out of the block. I know one hole is for the oil
gauge
> > and
> > > > > the
> > > > > > > > other is for a sensor. Does the MPI ECM not need to know the
oil
> > > > > > > > pressure?
> > > > > >
> > > > > > So I plug the hole and toss the sensor?
> > > > >
> > > > >
> > > > > I am not sure I would advixe you to toss the sensor, YOU need to
know
> > what
> > > > > the oil pressure is doing, just the ECM doesn't need to know.
> > > >
> > > > It's a frame off, ALL the sensors were pulled. There are presently
ONLY
> > > > the wires in the loom from the MPI on the engine, there are NO
others
> > > > installed yet. I had just assumed that the new ECM would want the
oil
> > > > info just as the old one had. Painless is gonna send me the new
looms
> > > > and wires.
> > > >
> > > > As for the oil pressure, there were two in one boss, one was for the
old
> > > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > > isn't interested in it.
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D98D67.2F551846@sympatico.ca...
> Does the MPI use it for a safety shut down?
>
> If so, then the OP sure needs it.
>
> Mike
>
> Richard Harris wrote:
> >
> > Mike according to my manual, the extra wire was for a low oil pressure
shut
> > down ckt. Not sure how or if it worked though
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40D8604B.F95B1084@sympatico.ca...
> > > I don't know what engine this is out of, but the failed Ford excuse
for
> > > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > > sensors.
> > >
> > > Stock you have one for the gauge on the dash only.
> > >
> > > The oil switch below the pressure sensor is used for the choke and
> > > manifold intake heater coil. It is switched on with oil pressure
only.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Jeepers wrote:
> > > >
> > > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > > >
> > > > > > > Nope..
> > > > > > >
> > > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > > I'm just finishing my MPI install on my project. Can anyone
tell
> > me
> > > > > what
> > > > > > > > to do with the oil pressure sensor? I have a small brass
> > manifold
> > > > > > > > sticking out of the block. I know one hole is for the oil
gauge
> > and
> > > > > the
> > > > > > > > other is for a sensor. Does the MPI ECM not need to know the
oil
> > > > > > > > pressure?
> > > > > >
> > > > > > So I plug the hole and toss the sensor?
> > > > >
> > > > >
> > > > > I am not sure I would advixe you to toss the sensor, YOU need to
know
> > what
> > > > > the oil pressure is doing, just the ECM doesn't need to know.
> > > >
> > > > It's a frame off, ALL the sensors were pulled. There are presently
ONLY
> > > > the wires in the loom from the MPI on the engine, there are NO
others
> > > > installed yet. I had just assumed that the new ECM would want the
oil
> > > > info just as the old one had. Painless is gonna send me the new
looms
> > > > and wires.
> > > >
> > > > As for the oil pressure, there were two in one boss, one was for the
old
> > > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > > isn't interested in it.
06-24-2004, 01:09 AM
#49
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
No my Mopar kit doesn't use the Op shutdown ckt.
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D98D67.2F551846@sympatico.ca...
> Does the MPI use it for a safety shut down?
>
> If so, then the OP sure needs it.
>
> Mike
>
> Richard Harris wrote:
> >
> > Mike according to my manual, the extra wire was for a low oil pressure
shut
> > down ckt. Not sure how or if it worked though
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40D8604B.F95B1084@sympatico.ca...
> > > I don't know what engine this is out of, but the failed Ford excuse
for
> > > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > > sensors.
> > >
> > > Stock you have one for the gauge on the dash only.
> > >
> > > The oil switch below the pressure sensor is used for the choke and
> > > manifold intake heater coil. It is switched on with oil pressure
only.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Jeepers wrote:
> > > >
> > > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > > >
> > > > > > > Nope..
> > > > > > >
> > > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > > I'm just finishing my MPI install on my project. Can anyone
tell
> > me
> > > > > what
> > > > > > > > to do with the oil pressure sensor? I have a small brass
> > manifold
> > > > > > > > sticking out of the block. I know one hole is for the oil
gauge
> > and
> > > > > the
> > > > > > > > other is for a sensor. Does the MPI ECM not need to know the
oil
> > > > > > > > pressure?
> > > > > >
> > > > > > So I plug the hole and toss the sensor?
> > > > >
> > > > >
> > > > > I am not sure I would advixe you to toss the sensor, YOU need to
know
> > what
> > > > > the oil pressure is doing, just the ECM doesn't need to know.
> > > >
> > > > It's a frame off, ALL the sensors were pulled. There are presently
ONLY
> > > > the wires in the loom from the MPI on the engine, there are NO
others
> > > > installed yet. I had just assumed that the new ECM would want the
oil
> > > > info just as the old one had. Painless is gonna send me the new
looms
> > > > and wires.
> > > >
> > > > As for the oil pressure, there were two in one boss, one was for the
old
> > > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > > isn't interested in it.
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40D98D67.2F551846@sympatico.ca...
> Does the MPI use it for a safety shut down?
>
> If so, then the OP sure needs it.
>
> Mike
>
> Richard Harris wrote:
> >
> > Mike according to my manual, the extra wire was for a low oil pressure
shut
> > down ckt. Not sure how or if it worked though
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40D8604B.F95B1084@sympatico.ca...
> > > I don't know what engine this is out of, but the failed Ford excuse
for
> > > an emissions computer on the Jeep 4.2 does not use any oil pressure
> > > sensors.
> > >
> > > Stock you have one for the gauge on the dash only.
> > >
> > > The oil switch below the pressure sensor is used for the choke and
> > > manifold intake heater coil. It is switched on with oil pressure
only.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Jeepers wrote:
> > > >
> > > > In article <10dgi2m8fh5ol05@corp.supernews.com>,
> > > > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
> > > >
> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > news:moomesa-D47868.21435021062004@corp.supernews.com...
> > > > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
> > > > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
> > > > > >
> > > > > > > Nope..
> > > > > > >
> > > > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
> > > > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
> > > > > > > > I'm just finishing my MPI install on my project. Can anyone
tell
> > me
> > > > > what
> > > > > > > > to do with the oil pressure sensor? I have a small brass
> > manifold
> > > > > > > > sticking out of the block. I know one hole is for the oil
gauge
> > and
> > > > > the
> > > > > > > > other is for a sensor. Does the MPI ECM not need to know the
oil
> > > > > > > > pressure?
> > > > > >
> > > > > > So I plug the hole and toss the sensor?
> > > > >
> > > > >
> > > > > I am not sure I would advixe you to toss the sensor, YOU need to
know
> > what
> > > > > the oil pressure is doing, just the ECM doesn't need to know.
> > > >
> > > > It's a frame off, ALL the sensors were pulled. There are presently
ONLY
> > > > the wires in the loom from the MPI on the engine, there are NO
others
> > > > installed yet. I had just assumed that the new ECM would want the
oil
> > > > info just as the old one had. Painless is gonna send me the new
looms
> > > > and wires.
> > > >
> > > > As for the oil pressure, there were two in one boss, one was for the
old
> > > > ECM the other is for the gauge. Apparently I lose one, since the ECM
> > > > isn't interested in it.
06-24-2004, 02:32 AM
#50
Guest
Posts: n/a
Re: MPI 4.2L Oil Sensor Question
In message <%K7Cc.60978$wO4.17661@twister.socal.rr.com>, "Richard Harris"
wrote:
>Mike according to my manual, the extra wire was for a low oil pressure shut
>down ckt. Not sure how or if it worked though
Toss that manual. There is no low oil pressure shut down circuit.
>
>"Mike Romain" <romainm@sympatico.ca> wrote in message
>news:40D8604B.F95B1084@sympatico.ca...
>> I don't know what engine this is out of, but the failed Ford excuse for
>> an emissions computer on the Jeep 4.2 does not use any oil pressure
>> sensors.
>>
>> Stock you have one for the gauge on the dash only.
>>
>> The oil switch below the pressure sensor is used for the choke and
>> manifold intake heater coil. It is switched on with oil pressure only.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>>
>> Jeepers wrote:
>> >
>> > In article <10dgi2m8fh5ol05@corp.supernews.com>,
>> > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
>> >
>> > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
>> > > news:moomesa-D47868.21435021062004@corp.supernews.com...
>> > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
>> > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
>> > > >
>> > > > > Nope..
>> > > > >
>> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
>> > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
>> > > > > > I'm just finishing my MPI install on my project. Can anyone tell
>me
>> > > what
>> > > > > > to do with the oil pressure sensor? I have a small brass
>manifold
>> > > > > > sticking out of the block. I know one hole is for the oil gauge
>and
>> > > the
>> > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
>> > > > > > pressure?
>> > > >
>> > > > So I plug the hole and toss the sensor?
>> > >
>> > >
>> > > I am not sure I would advixe you to toss the sensor, YOU need to know
>what
>> > > the oil pressure is doing, just the ECM doesn't need to know.
>> >
>> > It's a frame off, ALL the sensors were pulled. There are presently ONLY
>> > the wires in the loom from the MPI on the engine, there are NO others
>> > installed yet. I had just assumed that the new ECM would want the oil
>> > info just as the old one had. Painless is gonna send me the new looms
>> > and wires.
>> >
>> > As for the oil pressure, there were two in one boss, one was for the old
>> > ECM the other is for the gauge. Apparently I lose one, since the ECM
>> > isn't interested in it.
>
wrote:
>Mike according to my manual, the extra wire was for a low oil pressure shut
>down ckt. Not sure how or if it worked though
Toss that manual. There is no low oil pressure shut down circuit.
>
>"Mike Romain" <romainm@sympatico.ca> wrote in message
>news:40D8604B.F95B1084@sympatico.ca...
>> I don't know what engine this is out of, but the failed Ford excuse for
>> an emissions computer on the Jeep 4.2 does not use any oil pressure
>> sensors.
>>
>> Stock you have one for the gauge on the dash only.
>>
>> The oil switch below the pressure sensor is used for the choke and
>> manifold intake heater coil. It is switched on with oil pressure only.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>>
>> Jeepers wrote:
>> >
>> > In article <10dgi2m8fh5ol05@corp.supernews.com>,
>> > "CRWLR" <noneofyourbusiness@yahoo.com> wrote:
>> >
>> > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
>> > > news:moomesa-D47868.21435021062004@corp.supernews.com...
>> > > > In article <OUMBc.30254$Ha2.15857@twister.socal.rr.com>,
>> > > > "Richard Harris" <SHARRIS11nospam@san.rr.com> wrote:
>> > > >
>> > > > > Nope..
>> > > > >
>> > > > > "Jeepers" <moomesa@INVALIDfnbnet.net> wrote in message
>> > > > > news:moomesa-4E0798.21172421062004@corp.supernews.com...
>> > > > > > I'm just finishing my MPI install on my project. Can anyone tell
>me
>> > > what
>> > > > > > to do with the oil pressure sensor? I have a small brass
>manifold
>> > > > > > sticking out of the block. I know one hole is for the oil gauge
>and
>> > > the
>> > > > > > other is for a sensor. Does the MPI ECM not need to know the oil
>> > > > > > pressure?
>> > > >
>> > > > So I plug the hole and toss the sensor?
>> > >
>> > >
>> > > I am not sure I would advixe you to toss the sensor, YOU need to know
>what
>> > > the oil pressure is doing, just the ECM doesn't need to know.
>> >
>> > It's a frame off, ALL the sensors were pulled. There are presently ONLY
>> > the wires in the loom from the MPI on the engine, there are NO others
>> > installed yet. I had just assumed that the new ECM would want the oil
>> > info just as the old one had. Painless is gonna send me the new looms
>> > and wires.
>> >
>> > As for the oil pressure, there were two in one boss, one was for the old
>> > ECM the other is for the gauge. Apparently I lose one, since the ECM
>> > isn't interested in it.
>