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Discussion Starter · #1 ·
Hey guys I have a 1989 yj with a 2.5 TBI. I rebuilt the engine at the end of last winter but I put my old TBI back on it. For a while now it has been dieseling when I shut it off. My question is were to start looking I have taken the TBI off and cleaned it out. Do you think it could be my TPS?
 

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Check this out it is a few years old but very good. It talks to the how it does it and some ideas for a fix.

Timing?
 

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Discussion Starter · #3 ·
Thanks I will try some new plugs in the morning. Buy chance would someone have a part# for the champion plugs for a 1989 2.5. I have autolights in it now I hope the new plugs will fix my prob!!
 
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