Re: 2000 XJ won't hold idle...sometimes
 

That is just the computer trying to learn to idle again.

I don't know if this works for Chryslers, but it works for the older
GM's to reset it fast. You drive for 5 miles at less than 30 mph, then
pull over and shut it down. Start it back up and drive another 5 miles
under 30 mph and shut it down. Then start it up and floor it up over 30
and drive normal from there on.

This will make an older GM computer purr at idle again.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

David Owsley wrote:
>
> I have a similar problem after i have to jump start the my 99tj, i have to
> hold it above idle for quite a while before it will run on its own. could
> this also be the tps sensor connections or is it something else?
>
> david

Re: 2000 XJ won't hold idle...sometimes
 

That is just the computer trying to learn to idle again.

I don't know if this works for Chryslers, but it works for the older
GM's to reset it fast. You drive for 5 miles at less than 30 mph, then
pull over and shut it down. Start it back up and drive another 5 miles
under 30 mph and shut it down. Then start it up and floor it up over 30
and drive normal from there on.

This will make an older GM computer purr at idle again.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

David Owsley wrote:
>
> I have a similar problem after i have to jump start the my 99tj, i have to
> hold it above idle for quite a while before it will run on its own. could
> this also be the tps sensor connections or is it something else?
>
> david

Re: 2000 XJ won't hold idle...sometimes
 

Wonder if the battery is still a bit low and the pcm is widening the
injection pulses to compensate?

Jerry Bransford proclaimed:

> If you've drained the battery, you have also reset the engine computer.
> It will not run quite right until the computer relearns everything.
>
> Jerry
>
> David Owsley wrote:
>
>> I have a similar problem after i have to jump start the my 99tj, i
>> have to hold it above idle for quite a while before it will run on its
>> own. could this also be the tps sensor connections or is it something
>> else?
>>
>> david
>>
>

Re: 2000 XJ won't hold idle...sometimes
 

Wonder if the battery is still a bit low and the pcm is widening the
injection pulses to compensate?

Jerry Bransford proclaimed:

> If you've drained the battery, you have also reset the engine computer.
> It will not run quite right until the computer relearns everything.
>
> Jerry
>
> David Owsley wrote:
>
>> I have a similar problem after i have to jump start the my 99tj, i
>> have to hold it above idle for quite a while before it will run on its
>> own. could this also be the tps sensor connections or is it something
>> else?
>>
>> david
>>
>

Re: 2000 XJ won't hold idle...sometimes
 

Wonder if the battery is still a bit low and the pcm is widening the
injection pulses to compensate?

Jerry Bransford proclaimed:

> If you've drained the battery, you have also reset the engine computer.
> It will not run quite right until the computer relearns everything.
>
> Jerry
>
> David Owsley wrote:
>
>> I have a similar problem after i have to jump start the my 99tj, i
>> have to hold it above idle for quite a while before it will run on its
>> own. could this also be the tps sensor connections or is it something
>> else?
>>
>> david
>>
>

Re: 2000 XJ won't hold idle...sometimes
 

Lon wrote:
>
> Wonder if the battery is still a bit low and the pcm is widening the
> injection pulses to compensate?

Nah, that's not how it works.

Jerry


>
> Jerry Bransford proclaimed:
>
>> If you've drained the battery, you have also reset the engine
>> computer. It will not run quite right until the computer relearns
>> everything.
>>
>> Jerry
>>
>> David Owsley wrote:
>>
>>> I have a similar problem after i have to jump start the my 99tj, i
>>> have to hold it above idle for quite a while before it will run on
>>> its own. could this also be the tps sensor connections or is it
>>> something else?
>>>
>>> david
>>>
>>

--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/

Re: 2000 XJ won't hold idle...sometimes
 

Lon wrote:
>
> Wonder if the battery is still a bit low and the pcm is widening the
> injection pulses to compensate?

Nah, that's not how it works.

Jerry


>
> Jerry Bransford proclaimed:
>
>> If you've drained the battery, you have also reset the engine
>> computer. It will not run quite right until the computer relearns
>> everything.
>>
>> Jerry
>>
>> David Owsley wrote:
>>
>>> I have a similar problem after i have to jump start the my 99tj, i
>>> have to hold it above idle for quite a while before it will run on
>>> its own. could this also be the tps sensor connections or is it
>>> something else?
>>>
>>> david
>>>
>>

--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/

Re: 2000 XJ won't hold idle...sometimes
 

Lon wrote:
>
> Wonder if the battery is still a bit low and the pcm is widening the
> injection pulses to compensate?

Nah, that's not how it works.

Jerry


>
> Jerry Bransford proclaimed:
>
>> If you've drained the battery, you have also reset the engine
>> computer. It will not run quite right until the computer relearns
>> everything.
>>
>> Jerry
>>
>> David Owsley wrote:
>>
>>> I have a similar problem after i have to jump start the my 99tj, i
>>> have to hold it above idle for quite a while before it will run on
>>> its own. could this also be the tps sensor connections or is it
>>> something else?
>>>
>>> david
>>>
>>

--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/