89 Cherokee failed emissions - HELP!
08-02-2004, 09:50 PM
#11
Guest
Posts: n/a
Re: 89 Cherokee failed emissions - HELP!
I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
problem. It just passed the Illinois emission test either late last year or
early this year..........I forget. <g>
Did that shop plug into your ECM to see what was happening?
Other things that may cause your problem are your:
1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
closed loop!
2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
3. Are you sure those injectors are the right ones?
I stocked up on new 02s in case I need one or my parents' 88 XJ or another
Jeeper needs one. :-)
Oh and I should have a couple of used ECMs around here somewhere too!
later,
dave AKA vwdoc1
problem. It just passed the Illinois emission test either late last year or
early this year..........I forget. <g>
Did that shop plug into your ECM to see what was happening?
Other things that may cause your problem are your:
1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
closed loop!
2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
3. Are you sure those injectors are the right ones?
I stocked up on new 02s in case I need one or my parents' 88 XJ or another
Jeeper needs one. :-)
Oh and I should have a couple of used ECMs around here somewhere too!
later,
dave AKA vwdoc1
08-02-2004, 09:50 PM
#12
Guest
Posts: n/a
Re: 89 Cherokee failed emissions - HELP!
I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
problem. It just passed the Illinois emission test either late last year or
early this year..........I forget. <g>
Did that shop plug into your ECM to see what was happening?
Other things that may cause your problem are your:
1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
closed loop!
2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
3. Are you sure those injectors are the right ones?
I stocked up on new 02s in case I need one or my parents' 88 XJ or another
Jeeper needs one. :-)
Oh and I should have a couple of used ECMs around here somewhere too!
later,
dave AKA vwdoc1
problem. It just passed the Illinois emission test either late last year or
early this year..........I forget. <g>
Did that shop plug into your ECM to see what was happening?
Other things that may cause your problem are your:
1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
closed loop!
2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
3. Are you sure those injectors are the right ones?
I stocked up on new 02s in case I need one or my parents' 88 XJ or another
Jeeper needs one. :-)
Oh and I should have a couple of used ECMs around here somewhere too!
later,
dave AKA vwdoc1
08-02-2004, 09:50 PM
#13
Guest
Posts: n/a
Re: 89 Cherokee failed emissions - HELP!
I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
problem. It just passed the Illinois emission test either late last year or
early this year..........I forget. <g>
Did that shop plug into your ECM to see what was happening?
Other things that may cause your problem are your:
1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
closed loop!
2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
3. Are you sure those injectors are the right ones?
I stocked up on new 02s in case I need one or my parents' 88 XJ or another
Jeeper needs one. :-)
Oh and I should have a couple of used ECMs around here somewhere too!
later,
dave AKA vwdoc1
problem. It just passed the Illinois emission test either late last year or
early this year..........I forget. <g>
Did that shop plug into your ECM to see what was happening?
Other things that may cause your problem are your:
1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
closed loop!
2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
3. Are you sure those injectors are the right ones?
I stocked up on new 02s in case I need one or my parents' 88 XJ or another
Jeeper needs one. :-)
Oh and I should have a couple of used ECMs around here somewhere too!
later,
dave AKA vwdoc1
08-03-2004, 11:29 AM
#14
Guest
Posts: n/a
Re: 89 Cherokee failed emissions - HELP!
Hey Dave,
Thanks for the info. I have had two folks tell me that they had
problems getting the Bosch O2 sensor to work. I am also going to check
the CTS, MAP, MAT and ECM. I am going today and try and get a waiver
to give me some more time to deal with the problem. I called the
dealer in California about the injectors and they assure me that they
are the correct ones. Possibly you or someone knows if these 19 pound
pintle type are correct?
Thanks, Randy
"dave AKA vwdoc1" <NO_vwdoc1_SPAM_@hotmail.com_PLEASE> wrote in message news:<fbCPc.2410$hI.734974@newssvr28.news.prodigy. com>...
> I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
> problem. It just passed the Illinois emission test either late last year or
> early this year..........I forget. <g>
>
> Did that shop plug into your ECM to see what was happening?
>
> Other things that may cause your problem are your:
> 1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
> closed loop!
> 2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
> 3. Are you sure those injectors are the right ones?
>
> I stocked up on new 02s in case I need one or my parents' 88 XJ or another
> Jeeper needs one. :-)
> Oh and I should have a couple of used ECMs around here somewhere too!
>
> later,
> dave AKA vwdoc1
Thanks for the info. I have had two folks tell me that they had
problems getting the Bosch O2 sensor to work. I am also going to check
the CTS, MAP, MAT and ECM. I am going today and try and get a waiver
to give me some more time to deal with the problem. I called the
dealer in California about the injectors and they assure me that they
are the correct ones. Possibly you or someone knows if these 19 pound
pintle type are correct?
Thanks, Randy
"dave AKA vwdoc1" <NO_vwdoc1_SPAM_@hotmail.com_PLEASE> wrote in message news:<fbCPc.2410$hI.734974@newssvr28.news.prodigy. com>...
> I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
> problem. It just passed the Illinois emission test either late last year or
> early this year..........I forget. <g>
>
> Did that shop plug into your ECM to see what was happening?
>
> Other things that may cause your problem are your:
> 1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
> closed loop!
> 2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
> 3. Are you sure those injectors are the right ones?
>
> I stocked up on new 02s in case I need one or my parents' 88 XJ or another
> Jeeper needs one. :-)
> Oh and I should have a couple of used ECMs around here somewhere too!
>
> later,
> dave AKA vwdoc1
08-03-2004, 11:29 AM
#15
Guest
Posts: n/a
Re: 89 Cherokee failed emissions - HELP!
Hey Dave,
Thanks for the info. I have had two folks tell me that they had
problems getting the Bosch O2 sensor to work. I am also going to check
the CTS, MAP, MAT and ECM. I am going today and try and get a waiver
to give me some more time to deal with the problem. I called the
dealer in California about the injectors and they assure me that they
are the correct ones. Possibly you or someone knows if these 19 pound
pintle type are correct?
Thanks, Randy
"dave AKA vwdoc1" <NO_vwdoc1_SPAM_@hotmail.com_PLEASE> wrote in message news:<fbCPc.2410$hI.734974@newssvr28.news.prodigy. com>...
> I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
> problem. It just passed the Illinois emission test either late last year or
> early this year..........I forget. <g>
>
> Did that shop plug into your ECM to see what was happening?
>
> Other things that may cause your problem are your:
> 1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
> closed loop!
> 2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
> 3. Are you sure those injectors are the right ones?
>
> I stocked up on new 02s in case I need one or my parents' 88 XJ or another
> Jeeper needs one. :-)
> Oh and I should have a couple of used ECMs around here somewhere too!
>
> later,
> dave AKA vwdoc1
Thanks for the info. I have had two folks tell me that they had
problems getting the Bosch O2 sensor to work. I am also going to check
the CTS, MAP, MAT and ECM. I am going today and try and get a waiver
to give me some more time to deal with the problem. I called the
dealer in California about the injectors and they assure me that they
are the correct ones. Possibly you or someone knows if these 19 pound
pintle type are correct?
Thanks, Randy
"dave AKA vwdoc1" <NO_vwdoc1_SPAM_@hotmail.com_PLEASE> wrote in message news:<fbCPc.2410$hI.734974@newssvr28.news.prodigy. com>...
> I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
> problem. It just passed the Illinois emission test either late last year or
> early this year..........I forget. <g>
>
> Did that shop plug into your ECM to see what was happening?
>
> Other things that may cause your problem are your:
> 1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
> closed loop!
> 2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
> 3. Are you sure those injectors are the right ones?
>
> I stocked up on new 02s in case I need one or my parents' 88 XJ or another
> Jeeper needs one. :-)
> Oh and I should have a couple of used ECMs around here somewhere too!
>
> later,
> dave AKA vwdoc1
08-03-2004, 11:29 AM
#16
Guest
Posts: n/a
Re: 89 Cherokee failed emissions - HELP!
Hey Dave,
Thanks for the info. I have had two folks tell me that they had
problems getting the Bosch O2 sensor to work. I am also going to check
the CTS, MAP, MAT and ECM. I am going today and try and get a waiver
to give me some more time to deal with the problem. I called the
dealer in California about the injectors and they assure me that they
are the correct ones. Possibly you or someone knows if these 19 pound
pintle type are correct?
Thanks, Randy
"dave AKA vwdoc1" <NO_vwdoc1_SPAM_@hotmail.com_PLEASE> wrote in message news:<fbCPc.2410$hI.734974@newssvr28.news.prodigy. com>...
> I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
> problem. It just passed the Illinois emission test either late last year or
> early this year..........I forget. <g>
>
> Did that shop plug into your ECM to see what was happening?
>
> Other things that may cause your problem are your:
> 1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
> closed loop!
> 2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
> 3. Are you sure those injectors are the right ones?
>
> I stocked up on new 02s in case I need one or my parents' 88 XJ or another
> Jeeper needs one. :-)
> Oh and I should have a couple of used ECMs around here somewhere too!
>
> later,
> dave AKA vwdoc1
Thanks for the info. I have had two folks tell me that they had
problems getting the Bosch O2 sensor to work. I am also going to check
the CTS, MAP, MAT and ECM. I am going today and try and get a waiver
to give me some more time to deal with the problem. I called the
dealer in California about the injectors and they assure me that they
are the correct ones. Possibly you or someone knows if these 19 pound
pintle type are correct?
Thanks, Randy
"dave AKA vwdoc1" <NO_vwdoc1_SPAM_@hotmail.com_PLEASE> wrote in message news:<fbCPc.2410$hI.734974@newssvr28.news.prodigy. com>...
> I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
> problem. It just passed the Illinois emission test either late last year or
> early this year..........I forget. <g>
>
> Did that shop plug into your ECM to see what was happening?
>
> Other things that may cause your problem are your:
> 1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
> closed loop!
> 2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
> 3. Are you sure those injectors are the right ones?
>
> I stocked up on new 02s in case I need one or my parents' 88 XJ or another
> Jeeper needs one. :-)
> Oh and I should have a couple of used ECMs around here somewhere too!
>
> later,
> dave AKA vwdoc1
08-03-2004, 11:29 AM
#17
Guest
Posts: n/a
Re: 89 Cherokee failed emissions - HELP!
Hey Dave,
Thanks for the info. I have had two folks tell me that they had
problems getting the Bosch O2 sensor to work. I am also going to check
the CTS, MAP, MAT and ECM. I am going today and try and get a waiver
to give me some more time to deal with the problem. I called the
dealer in California about the injectors and they assure me that they
are the correct ones. Possibly you or someone knows if these 19 pound
pintle type are correct?
Thanks, Randy
"dave AKA vwdoc1" <NO_vwdoc1_SPAM_@hotmail.com_PLEASE> wrote in message news:<fbCPc.2410$hI.734974@newssvr28.news.prodigy. com>...
> I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
> problem. It just passed the Illinois emission test either late last year or
> early this year..........I forget. <g>
>
> Did that shop plug into your ECM to see what was happening?
>
> Other things that may cause your problem are your:
> 1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
> closed loop!
> 2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
> 3. Are you sure those injectors are the right ones?
>
> I stocked up on new 02s in case I need one or my parents' 88 XJ or another
> Jeeper needs one. :-)
> Oh and I should have a couple of used ECMs around here somewhere too!
>
> later,
> dave AKA vwdoc1
Thanks for the info. I have had two folks tell me that they had
problems getting the Bosch O2 sensor to work. I am also going to check
the CTS, MAP, MAT and ECM. I am going today and try and get a waiver
to give me some more time to deal with the problem. I called the
dealer in California about the injectors and they assure me that they
are the correct ones. Possibly you or someone knows if these 19 pound
pintle type are correct?
Thanks, Randy
"dave AKA vwdoc1" <NO_vwdoc1_SPAM_@hotmail.com_PLEASE> wrote in message news:<fbCPc.2410$hI.734974@newssvr28.news.prodigy. com>...
> I am running a Bosch 02 sensor on my 88 XJ 4.0 for about 3 years with no
> problem. It just passed the Illinois emission test either late last year or
> early this year..........I forget. <g>
>
> Did that shop plug into your ECM to see what was happening?
>
> Other things that may cause your problem are your:
> 1. CTS (Coolant Temperature Sensor). It may be faulty and not allowing the
> closed loop!
> 2. MAP may cause a rich mixture, so you need to check the vacuum to it also!
> 3. Are you sure those injectors are the right ones?
>
> I stocked up on new 02s in case I need one or my parents' 88 XJ or another
> Jeeper needs one. :-)
> Oh and I should have a couple of used ECMs around here somewhere too!
>
> later,
> dave AKA vwdoc1
