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Cal 07-02-2007 11:21 AM

Re: Engine Light
 
my lookup describes a p1694 as "manufacturer contrl auxiliary inputs
auxiliary outputs", whatever the heck that is...

cal


"Jeff Strickland" <crwlr@verizon.net> wrote in message
news:vYQgi.3198$yp.1317@trnddc08...
>
> "Dooly" <abdmalik1@yahoo.com> wrote in message
> news:1182991889.747884.131360@m36g2000hse.googlegr oups.com...
>>
>> Alan wrote:
>>> I live in California and have a 2000 Jeep Cherokee Sport. Occasionally
>>> (perhaps once a year) the engine light will come on. I'll get antsy and
>>> plan
>>> to take it in for service. But the light only stays on for a couple of
>>> hours
>>> then goes off. I mention this to the service guys and because the light
>>> isn't on, they have no clue.

>>
>> hi everyone. i also have a '00 xj and the engine light came on with a
>> code of : P1694, 0141, & 0455. anything serious?
>> thanks in advance,
>> doo
>>

>
> POINT OF ORDER
> When listing codes, you should give all of the digits, P0141, P0455,
> P1694, etc.
>
>
>
> I'm not sure what the P1694 code is, another poster said it was a Tach.
> Error of some sort. My source says FAULT COMPANION MODE. I do not know
> what that means.
>
> P0141 is a problem with an O2 Sensor Heater. The O2 sensor has a heater
> built in that improves sensor stability while the engine is still cold,
> the code you got says that the heater is not working.
>
> P0455 is a gross leak in the Evaporative Emissions Control System. It
> could be any number of things, but a loose gas cap is the leading suspect.
>
>
>
> I like this Web page ...
>
> http://autorepair.about.com/od/obdco..._1996_year.htm
>
>
>




Alan 07-16-2007 12:52 PM

Re: Engine Light
 

"XS11E" <xs11e@mailinator.com> wrote in message
news:Xns995B69381A7E6xs11emailinatorcom@69.28.173. 184...
> "Alan" <alanb_lano2spam@yahoo.com> wrote:
>
>> I live in California and have a 2000 Jeep Cherokee Sport.
>> Occasionally (perhaps once a year) the engine light will come on.
>> I'll get antsy and plan to take it in for service. But the light
>> only stays on for a couple of hours then goes off. I mention this
>> to the service guys and because the light isn't on, they have no
>> clue.

>
> Shouldn't the Check Engine Light set a code in the computer? Shouldn't
> the service guys know how to read the code and see what set it? I
> think you're correct when you say, "..they have no clue."


I took the Jeep to a different service place that I had used before that was
on the list of AAA-proved repair shops. They checked the codes and
determined that one of the three catalytic converters had failed. They said
they also checked to see if it was just a bad sensor. They said that parts
and labor for a rebuilt unit would be about $1500. New would be about $1900.
They also said I could drive it for a few months (maybe longer) without
damaging anything, but that if a smog test was upcoming, it wouldn't pass. I
drove the Jeep for a about a week and then yesterday all by itself the
engine light went off.

I didn't keep an accurate record, but here is approximately what has
happened. A year and a half ago, the engine light came on for a few hours
then went off. Six weeks ago it came on for a few hours then went off. Two
weeks ago it came on and stayed on for about 10 days. It is now off.

Is that what happens when a catalytic converter is failing but hasn't yet
failed completely? Or does this behavior portend something else?




Alan 07-16-2007 12:52 PM

Re: Engine Light
 

"XS11E" <xs11e@mailinator.com> wrote in message
news:Xns995B69381A7E6xs11emailinatorcom@69.28.173. 184...
> "Alan" <alanb_lano2spam@yahoo.com> wrote:
>
>> I live in California and have a 2000 Jeep Cherokee Sport.
>> Occasionally (perhaps once a year) the engine light will come on.
>> I'll get antsy and plan to take it in for service. But the light
>> only stays on for a couple of hours then goes off. I mention this
>> to the service guys and because the light isn't on, they have no
>> clue.

>
> Shouldn't the Check Engine Light set a code in the computer? Shouldn't
> the service guys know how to read the code and see what set it? I
> think you're correct when you say, "..they have no clue."


I took the Jeep to a different service place that I had used before that was
on the list of AAA-proved repair shops. They checked the codes and
determined that one of the three catalytic converters had failed. They said
they also checked to see if it was just a bad sensor. They said that parts
and labor for a rebuilt unit would be about $1500. New would be about $1900.
They also said I could drive it for a few months (maybe longer) without
damaging anything, but that if a smog test was upcoming, it wouldn't pass. I
drove the Jeep for a about a week and then yesterday all by itself the
engine light went off.

I didn't keep an accurate record, but here is approximately what has
happened. A year and a half ago, the engine light came on for a few hours
then went off. Six weeks ago it came on for a few hours then went off. Two
weeks ago it came on and stayed on for about 10 days. It is now off.

Is that what happens when a catalytic converter is failing but hasn't yet
failed completely? Or does this behavior portend something else?




Alan 07-16-2007 12:52 PM

Re: Engine Light
 

"XS11E" <xs11e@mailinator.com> wrote in message
news:Xns995B69381A7E6xs11emailinatorcom@69.28.173. 184...
> "Alan" <alanb_lano2spam@yahoo.com> wrote:
>
>> I live in California and have a 2000 Jeep Cherokee Sport.
>> Occasionally (perhaps once a year) the engine light will come on.
>> I'll get antsy and plan to take it in for service. But the light
>> only stays on for a couple of hours then goes off. I mention this
>> to the service guys and because the light isn't on, they have no
>> clue.

>
> Shouldn't the Check Engine Light set a code in the computer? Shouldn't
> the service guys know how to read the code and see what set it? I
> think you're correct when you say, "..they have no clue."


I took the Jeep to a different service place that I had used before that was
on the list of AAA-proved repair shops. They checked the codes and
determined that one of the three catalytic converters had failed. They said
they also checked to see if it was just a bad sensor. They said that parts
and labor for a rebuilt unit would be about $1500. New would be about $1900.
They also said I could drive it for a few months (maybe longer) without
damaging anything, but that if a smog test was upcoming, it wouldn't pass. I
drove the Jeep for a about a week and then yesterday all by itself the
engine light went off.

I didn't keep an accurate record, but here is approximately what has
happened. A year and a half ago, the engine light came on for a few hours
then went off. Six weeks ago it came on for a few hours then went off. Two
weeks ago it came on and stayed on for about 10 days. It is now off.

Is that what happens when a catalytic converter is failing but hasn't yet
failed completely? Or does this behavior portend something else?




Alan 07-16-2007 12:52 PM

Re: Engine Light
 

"XS11E" <xs11e@mailinator.com> wrote in message
news:Xns995B69381A7E6xs11emailinatorcom@69.28.173. 184...
> "Alan" <alanb_lano2spam@yahoo.com> wrote:
>
>> I live in California and have a 2000 Jeep Cherokee Sport.
>> Occasionally (perhaps once a year) the engine light will come on.
>> I'll get antsy and plan to take it in for service. But the light
>> only stays on for a couple of hours then goes off. I mention this
>> to the service guys and because the light isn't on, they have no
>> clue.

>
> Shouldn't the Check Engine Light set a code in the computer? Shouldn't
> the service guys know how to read the code and see what set it? I
> think you're correct when you say, "..they have no clue."


I took the Jeep to a different service place that I had used before that was
on the list of AAA-proved repair shops. They checked the codes and
determined that one of the three catalytic converters had failed. They said
they also checked to see if it was just a bad sensor. They said that parts
and labor for a rebuilt unit would be about $1500. New would be about $1900.
They also said I could drive it for a few months (maybe longer) without
damaging anything, but that if a smog test was upcoming, it wouldn't pass. I
drove the Jeep for a about a week and then yesterday all by itself the
engine light went off.

I didn't keep an accurate record, but here is approximately what has
happened. A year and a half ago, the engine light came on for a few hours
then went off. Six weeks ago it came on for a few hours then went off. Two
weeks ago it came on and stayed on for about 10 days. It is now off.

Is that what happens when a catalytic converter is failing but hasn't yet
failed completely? Or does this behavior portend something else?




Alan 07-16-2007 01:29 PM

Re: Engine Light
 

"jeff" <jalowe44.invalid@hotmail.net.invalid> wrote in message
news:469ba4b1$0$4274$afc38c87@...
> Alan wrote:
>> "XS11E" <xs11e@mailinator.com> wrote in message
>> news:Xns995B69381A7E6xs11emailinatorcom@69.28.173. 184...
>>

>
> You do not say how many miles you have, but if under 80k then this is a
> warranty repair. In any, after market cats sell for a couple hundred.
> $1500-$1800 for a replacement cat seems beyond excessive and well into
> abusive, although that may be a PRK thing.


I have 109,500 miles. Yes, I will check other places before I spend that
kind of money. But I wanted to get some idea of whether this on-off-on-off
thing with the light is a reasonable occurance if the cat has failed or is
failing.



Alan 07-16-2007 01:29 PM

Re: Engine Light
 

"jeff" <jalowe44.invalid@hotmail.net.invalid> wrote in message
news:469ba4b1$0$4274$afc38c87@...
> Alan wrote:
>> "XS11E" <xs11e@mailinator.com> wrote in message
>> news:Xns995B69381A7E6xs11emailinatorcom@69.28.173. 184...
>>

>
> You do not say how many miles you have, but if under 80k then this is a
> warranty repair. In any, after market cats sell for a couple hundred.
> $1500-$1800 for a replacement cat seems beyond excessive and well into
> abusive, although that may be a PRK thing.


I have 109,500 miles. Yes, I will check other places before I spend that
kind of money. But I wanted to get some idea of whether this on-off-on-off
thing with the light is a reasonable occurance if the cat has failed or is
failing.



Alan 07-16-2007 01:29 PM

Re: Engine Light
 

"jeff" <jalowe44.invalid@hotmail.net.invalid> wrote in message
news:469ba4b1$0$4274$afc38c87@...
> Alan wrote:
>> "XS11E" <xs11e@mailinator.com> wrote in message
>> news:Xns995B69381A7E6xs11emailinatorcom@69.28.173. 184...
>>

>
> You do not say how many miles you have, but if under 80k then this is a
> warranty repair. In any, after market cats sell for a couple hundred.
> $1500-$1800 for a replacement cat seems beyond excessive and well into
> abusive, although that may be a PRK thing.


I have 109,500 miles. Yes, I will check other places before I spend that
kind of money. But I wanted to get some idea of whether this on-off-on-off
thing with the light is a reasonable occurance if the cat has failed or is
failing.



Alan 07-16-2007 01:29 PM

Re: Engine Light
 

"jeff" <jalowe44.invalid@hotmail.net.invalid> wrote in message
news:469ba4b1$0$4274$afc38c87@...
> Alan wrote:
>> "XS11E" <xs11e@mailinator.com> wrote in message
>> news:Xns995B69381A7E6xs11emailinatorcom@69.28.173. 184...
>>

>
> You do not say how many miles you have, but if under 80k then this is a
> warranty repair. In any, after market cats sell for a couple hundred.
> $1500-$1800 for a replacement cat seems beyond excessive and well into
> abusive, although that may be a PRK thing.


I have 109,500 miles. Yes, I will check other places before I spend that
kind of money. But I wanted to get some idea of whether this on-off-on-off
thing with the light is a reasonable occurance if the cat has failed or is
failing.



Mike Romain 07-16-2007 01:30 PM

Re: Engine Light
 
Alan wrote:
>
> I didn't keep an accurate record, but here is approximately what has
> happened. A year and a half ago, the engine light came on for a few hours
> then went off. Six weeks ago it came on for a few hours then went off. Two
> weeks ago it came on and stayed on for about 10 days. It is now off.
>
> Is that what happens when a catalytic converter is failing but hasn't yet
> failed completely? Or does this behavior portend something else?
>
>
>


Are they including a new engine with this Cat? If not, they are
thieves. Certainly 'not' trustworthy enough to give you a straight code
answer.

A loose gas cap even will cause the check engine light to come on
intermittently.

Can you not get your own codes on that one? I don't know, but if you
can, you turn the key to get them. You go to run, off, run, off and run
again and watch the dash for either a blinking light you count the
flashes or a series of numbers starting with a P will flash.

Some auto parts stores will also check the codes for free.

If you can get that, then let us know the codes.

You can also clear the codes by unhooking the battery for a few minutes
so if the light doesn't immediately come back on, you shouldn't get
suckered for emissions.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)


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