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-   -   1990 2.5 running rough at high rpm @ operating temp (http://www.wranglerforum.com/f218/1990-2-5-running-rough-at-high-rpm-operating-temp-62537.html)

LilDribble 09-21-2010 01:03 PM

1990 2.5 running rough at high rpm @ operating temp
 
I have replaced O2 sensor, checked for vac leakes, new fuel pump and filter. It will run great then all of a sudden run rough. Shut down engine and restarted asap. Runs great for a while then all over again. ANYONE have an idea of the cause? Solution?:banghead:

Also does the O2 sensor timer NEED to be reset?


Thank you
Dribble

LilDribble 09-22-2010 04:40 PM

More parts.....
 
New Parts:
Quote:

Originally Posted by LilDribble (Post 781656)
I have replaced O2 sensor, checked for vac leakes, new fuel pump and filter. It will run great then all of a sudden run rough. Shut down engine and restarted asap. Runs great for a while then all over again. ANYONE have an idea of the cause? Solution?:banghead:

Also does the O2 sensor timer NEED to be reset? Just replaced Temp sensor.... NO HELP.... :confused: MAP sensor? Intake air sensor? What next? This year did not have codes to go by......


Thank you
Dribble



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