1993 Grand Caravan 3.3-Code 43 when engine is cold [Archive] - Dodge Talk Community Forum


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jpcab
02-11-2005, 02:25 PM
Help!!! I get a check engine light when the engine is started cold. I get a code 43. Once the engine is warm, everything is fine. No check engine light and no trouble code after clearing codes. Only happens when the egine is cold.

mmahamm
02-11-2005, 02:59 PM
Check out Allpar for Chrysler Computer codes. It lists the following possibilities for 43:

http://www.allpar.com/fix/80s-codes.html

"43 Peak primary coil current not achieved with max dwell time
OR
43 Cylinder misfire
OR
43 Problem in power module to logic module interface "

None of these appear to be major issues. If it were mine, I would let it go for now and check the codes every month or so to make sure nothing else is in there.

jpcab
02-11-2005, 07:19 PM
Looks like the problem is with the PCM! I put a heat gun on the PCM to warm it up before I started the engine. As soon as it was warm, the engine started without anymore problems.

Do know where can I buy a cheap PCM?

Thanks for your help!