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-   -   Cold Starting Check Engine light (http://www.jeepforum.com/forum/f12/cold-starting-check-engine-light-524189/)

woody59 02-23-2008 08:37 PM

Cold Starting Check Engine light
 
I looked through a lot of the threads and think I have this nailed down but wanted to make sure. I have a '93 4 cylinder that is normally really faithful, even in cold weather. This Ohio winter has been rough and now I have to wait for the check engine light to turn on before starting. Once it comes on (sometimes over 5 min) it starts right up. Also, not sure if this is related but my gas mileage went south as well.

I checked all the spark plugs and everything looked good.

New fuel filter but no help.

Was thinking it might be the CPU??:confused:

Well, after doing more research, I'm going to try replacing the capacitors in the PCM. Hopefully this takes care of it.

http://www.jeepforum.com/forum/f13/fixing-lazy-pcm-new-caps-writeup-501951/


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