Re: PING again. Tested Fuel pressure. Came out ok.
 

Because it still contains lead, the easiest and least expensive way
to booster octane, without damaging the engine.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

c wrote:
>
> Unless they've changed aviation fuel in the last couple years, then DO NOT
> run any through your Jeep unless you don't have a catalytic converter. They
> are not compatible with aviation fuel.
>
> Chris

Re: PING again. Tested Fuel pressure. Came out ok.
 

Because it still contains lead, the easiest and least expensive way
to booster octane, without damaging the engine.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

c wrote:
>
> Unless they've changed aviation fuel in the last couple years, then DO NOT
> run any through your Jeep unless you don't have a catalytic converter. They
> are not compatible with aviation fuel.
>
> Chris

Re: PING again. Tested Fuel pressure. Came out ok.
 

Because it still contains lead, the easiest and least expensive way
to booster octane, without damaging the engine.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

c wrote:
>
> Unless they've changed aviation fuel in the last couple years, then DO NOT
> run any through your Jeep unless you don't have a catalytic converter. They
> are not compatible with aviation fuel.
>
> Chris

Re: PING again. Tested Fuel pressure. Came out ok.
 

When they had the DRB II on it, did they look at the sensor readings? Did the
Baro reading make sense considering the elevation & conditions at your location?
MAP sensor could cause this.

Anything that could cause a lean condition could cause it. Coolant temp sensor
making the computer think it's hotter than it really is. An O2 sensor that's
out of spec could make the computer think it's rich.

All the sensors have to work properly for the computer to correctly determine
out how much air it's taking in, and how dense that air is.



In message <bltg4d$gbilm$1@ID-193866.news.uni-berlin.de>, "William Oliveri"
wrote:

>Hi all,
>
> The Pinging problem continues. I tested the fuel pressure today and it
>comes out at or above what Hesco recommends:
>
>Hesco = 30 psi at idle
>Mine = 31 -> 32 psi at idle
>
>Hesco = 34 -> 38 when driving
>Mine = "Hose not long enough to stick out of the hood to see to test"
>
>So I couldn't test when driving unless I take the hood off which I'm not
>opposed to doing I just didn't have time this evening.
>
>So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
>Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
>to have then doesn't that leave that one out?
>
>Does this mean the 4.0L head is the only fix?
>
>
>Agggghhhh :-(
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

When they had the DRB II on it, did they look at the sensor readings? Did the
Baro reading make sense considering the elevation & conditions at your location?
MAP sensor could cause this.

Anything that could cause a lean condition could cause it. Coolant temp sensor
making the computer think it's hotter than it really is. An O2 sensor that's
out of spec could make the computer think it's rich.

All the sensors have to work properly for the computer to correctly determine
out how much air it's taking in, and how dense that air is.



In message <bltg4d$gbilm$1@ID-193866.news.uni-berlin.de>, "William Oliveri"
wrote:

>Hi all,
>
> The Pinging problem continues. I tested the fuel pressure today and it
>comes out at or above what Hesco recommends:
>
>Hesco = 30 psi at idle
>Mine = 31 -> 32 psi at idle
>
>Hesco = 34 -> 38 when driving
>Mine = "Hose not long enough to stick out of the hood to see to test"
>
>So I couldn't test when driving unless I take the hood off which I'm not
>opposed to doing I just didn't have time this evening.
>
>So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
>Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
>to have then doesn't that leave that one out?
>
>Does this mean the 4.0L head is the only fix?
>
>
>Agggghhhh :-(
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

When they had the DRB II on it, did they look at the sensor readings? Did the
Baro reading make sense considering the elevation & conditions at your location?
MAP sensor could cause this.

Anything that could cause a lean condition could cause it. Coolant temp sensor
making the computer think it's hotter than it really is. An O2 sensor that's
out of spec could make the computer think it's rich.

All the sensors have to work properly for the computer to correctly determine
out how much air it's taking in, and how dense that air is.



In message <bltg4d$gbilm$1@ID-193866.news.uni-berlin.de>, "William Oliveri"
wrote:

>Hi all,
>
> The Pinging problem continues. I tested the fuel pressure today and it
>comes out at or above what Hesco recommends:
>
>Hesco = 30 psi at idle
>Mine = 31 -> 32 psi at idle
>
>Hesco = 34 -> 38 when driving
>Mine = "Hose not long enough to stick out of the hood to see to test"
>
>So I couldn't test when driving unless I take the hood off which I'm not
>opposed to doing I just didn't have time this evening.
>
>So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
>Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
>to have then doesn't that leave that one out?
>
>Does this mean the 4.0L head is the only fix?
>
>
>Agggghhhh :-(
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

This I can't tell you. I only know JeepsRUs have extensive experience in
this matter so I have to trust them. I don't (yet) have a DRB II of my own
to view these settings myself.

One thing JeepsRUs have suggested as the next step is one of those Tornado
things which the owner of JeepsRUs was surprised worked on another jeep to
relieve the pinging. If it works and is a simple fix I'm all for it. I'd
rather be driving my jeep at this point than tearing it apart to put the
4.0L head on it.

bill

"bllsht" <nospam@invaliddot.net> wrote in message
news:ip27ovcvtj6704humhi5bghhlp6q81uj14@4ax.com...
> When they had the DRB II on it, did they look at the sensor readings? Did
the
> Baro reading make sense considering the elevation & conditions at your
location?
> MAP sensor could cause this.
>
> Anything that could cause a lean condition could cause it. Coolant temp
sensor
> making the computer think it's hotter than it really is. An O2 sensor
that's
> out of spec could make the computer think it's rich.
>
> All the sensors have to work properly for the computer to correctly
determine
> out how much air it's taking in, and how dense that air is.
>
>
>
> In message <bltg4d$gbilm$1@ID-193866.news.uni-berlin.de>, "William
Oliveri"
> wrote:
>
> >Hi all,
> >
> > The Pinging problem continues. I tested the fuel pressure today and it
> >comes out at or above what Hesco recommends:
> >
> >Hesco = 30 psi at idle
> >Mine = 31 -> 32 psi at idle
> >
> >Hesco = 34 -> 38 when driving
> >Mine = "Hose not long enough to stick out of the hood to see to test"
> >
> >So I couldn't test when driving unless I take the hood off which I'm not
> >opposed to doing I just didn't have time this evening.
> >
> >So I'm at a loss what to do next. I was warming up to the Adjustable
Fuel
> >Pressure Regulator as a fix but if I'm in line with the pressure I'm
suppose
> >to have then doesn't that leave that one out?
> >
> >Does this mean the 4.0L head is the only fix?
> >
> >
> >Agggghhhh :-(
> >
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

This I can't tell you. I only know JeepsRUs have extensive experience in
this matter so I have to trust them. I don't (yet) have a DRB II of my own
to view these settings myself.

One thing JeepsRUs have suggested as the next step is one of those Tornado
things which the owner of JeepsRUs was surprised worked on another jeep to
relieve the pinging. If it works and is a simple fix I'm all for it. I'd
rather be driving my jeep at this point than tearing it apart to put the
4.0L head on it.

bill

"bllsht" <nospam@invaliddot.net> wrote in message
news:ip27ovcvtj6704humhi5bghhlp6q81uj14@4ax.com...
> When they had the DRB II on it, did they look at the sensor readings? Did
the
> Baro reading make sense considering the elevation & conditions at your
location?
> MAP sensor could cause this.
>
> Anything that could cause a lean condition could cause it. Coolant temp
sensor
> making the computer think it's hotter than it really is. An O2 sensor
that's
> out of spec could make the computer think it's rich.
>
> All the sensors have to work properly for the computer to correctly
determine
> out how much air it's taking in, and how dense that air is.
>
>
>
> In message <bltg4d$gbilm$1@ID-193866.news.uni-berlin.de>, "William
Oliveri"
> wrote:
>
> >Hi all,
> >
> > The Pinging problem continues. I tested the fuel pressure today and it
> >comes out at or above what Hesco recommends:
> >
> >Hesco = 30 psi at idle
> >Mine = 31 -> 32 psi at idle
> >
> >Hesco = 34 -> 38 when driving
> >Mine = "Hose not long enough to stick out of the hood to see to test"
> >
> >So I couldn't test when driving unless I take the hood off which I'm not
> >opposed to doing I just didn't have time this evening.
> >
> >So I'm at a loss what to do next. I was warming up to the Adjustable
Fuel
> >Pressure Regulator as a fix but if I'm in line with the pressure I'm
suppose
> >to have then doesn't that leave that one out?
> >
> >Does this mean the 4.0L head is the only fix?
> >
> >
> >Agggghhhh :-(
> >
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

This I can't tell you. I only know JeepsRUs have extensive experience in
this matter so I have to trust them. I don't (yet) have a DRB II of my own
to view these settings myself.

One thing JeepsRUs have suggested as the next step is one of those Tornado
things which the owner of JeepsRUs was surprised worked on another jeep to
relieve the pinging. If it works and is a simple fix I'm all for it. I'd
rather be driving my jeep at this point than tearing it apart to put the
4.0L head on it.

bill

"bllsht" <nospam@invaliddot.net> wrote in message
news:ip27ovcvtj6704humhi5bghhlp6q81uj14@4ax.com...
> When they had the DRB II on it, did they look at the sensor readings? Did
the
> Baro reading make sense considering the elevation & conditions at your
location?
> MAP sensor could cause this.
>
> Anything that could cause a lean condition could cause it. Coolant temp
sensor
> making the computer think it's hotter than it really is. An O2 sensor
that's
> out of spec could make the computer think it's rich.
>
> All the sensors have to work properly for the computer to correctly
determine
> out how much air it's taking in, and how dense that air is.
>
>
>
> In message <bltg4d$gbilm$1@ID-193866.news.uni-berlin.de>, "William
Oliveri"
> wrote:
>
> >Hi all,
> >
> > The Pinging problem continues. I tested the fuel pressure today and it
> >comes out at or above what Hesco recommends:
> >
> >Hesco = 30 psi at idle
> >Mine = 31 -> 32 psi at idle
> >
> >Hesco = 34 -> 38 when driving
> >Mine = "Hose not long enough to stick out of the hood to see to test"
> >
> >So I couldn't test when driving unless I take the hood off which I'm not
> >opposed to doing I just didn't have time this evening.
> >
> >So I'm at a loss what to do next. I was warming up to the Adjustable
Fuel
> >Pressure Regulator as a fix but if I'm in line with the pressure I'm
suppose
> >to have then doesn't that leave that one out?
> >
> >Does this mean the 4.0L head is the only fix?
> >
> >
> >Agggghhhh :-(
> >
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

With higher fuel pressures and better electronics, the PCM handles all that now.


In message <JxX2tWiP5BNp-pn2-xHxPWZKwn04M@anon.none.net>, "Will Honea" wrote:

>Every one of the Jeep MPI's call for 40 PSI until vacuum builds, then
>back off to 30PSI. Hmmm... wonder how the new ones with the regulator
>in the pump manage that?
>
>On Tue, 7 Oct 2003 05:23:09 UTC L.W.(ßill) ------ III
><----------@cox.net> wrote:
>
>> Every electronic fuel injection I know of runs forty pounds, screw
>> it down.
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> William Oliveri wrote:
>> >
>> > Hi all,
>> >
>> > The Pinging problem continues. I tested the fuel pressure today and it
>> > comes out at or above what Hesco recommends:
>> >
>> > Hesco = 30 psi at idle
>> > Mine = 31 -> 32 psi at idle
>> >
>> > Hesco = 34 -> 38 when driving
>> > Mine = "Hose not long enough to stick out of the hood to see to test"
>> >
>> > So I couldn't test when driving unless I take the hood off which I'm not
>> > opposed to doing I just didn't have time this evening.
>> >
>> > So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
>> > Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
>> > to have then doesn't that leave that one out?
>> >
>> > Does this mean the 4.0L head is the only fix?
>> >
>> > Agggghhhh :-(