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1999 Grand Cherokee Check Engine codes



 
 
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  #1  
Old May 25th 05, 06:10 AM
Marvin Oliver
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Default 1999 Grand Cherokee Check Engine codes

check engine codes are
p0203,p0202, p0204, p0206, p0207, p0208, and p0121

Engine does not seem to be missing so I don't know why the first six codes.
The rpms will change suddenly when at and idle or just sort of coasting
(very little gas applied).

How do I check the throttle position sensor? Is it possible that there is a
common cable/plug for all these codes that could be causing the problem?

tia
jim


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  #2  
Old May 25th 05, 06:35 AM
L.W.(ßill) Hughes III
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Default

Did you try out one of these snake oils? Sugar?
http://www.wjjeeps.com/faultcodes.htm#0200 Might clean their
connections, and: http://members.cox.net/wilsond/tb/tb.html
God Bless America, ßill O|||||||O
http://www.billhughes.com/

Marvin Oliver wrote:
>
> check engine codes are
> p0203,p0202, p0204, p0206, p0207, p0208, and p0121
>
> Engine does not seem to be missing so I don't know why the first six codes.
> The rpms will change suddenly when at and idle or just sort of coasting
> (very little gas applied).
>
> How do I check the throttle position sensor? Is it possible that there is a
> common cable/plug for all these codes that could be causing the problem?
>
> tia
> jim

  #3  
Old May 28th 05, 03:26 PM
mic canic
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Posts: n/a
Default

these are the type of codes that should go to a dealer due to they affect
emissions

Marvin Oliver wrote:

> check engine codes are
> p0203,p0202, p0204, p0206, p0207, p0208, and p0121
>
> Engine does not seem to be missing so I don't know why the first six codes.
> The rpms will change suddenly when at and idle or just sort of coasting
> (very little gas applied).
>
> How do I check the throttle position sensor? Is it possible that there is a
> common cable/plug for all these codes that could be causing the problem?
>
> tia
> jim


  #4  
Old April 22nd 17, 04:18 PM posted to rec.autos.makers.jeep+willys
D1w,26
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Posts: 1
Default 1999 Grand Cherokee Check Engine codes

replying to Marvin Oliver, D1w,26 wrote:
Pop 121


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for full context, visit http://www.motorsforum.com/jeep/1999...des-66860-.htm


 




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