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Old 03-28-2013, 09:24 PM   #1
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1994 JEEP pcm computer

Can someone answer me a question? Ihave a 1994 jeep wrangler 4.0 HO motor 3 speed 32 rh auto trans air cond i have a bad pcm computer 56031199 I installed a pcm 5602abff out of a full size jeep with a 4.0 5 speed auto od trans jeep runs great i have put it back into friends truck used as a test i am going to the junk yards this weekend does any one know what will interchange? full size jeeps a a dime a dozen wranglers good luck in the yards 1992 1995 4.0 autos seem to work? whats your scoop on this . and did anyone do this with long term success.
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Old 03-29-2013, 10:36 AM   #2
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Most of the 94's you'll find will probably have the old capacitors in them. If you can replace 3 capacitors on the main system board (look out here for PCM rebuild) then you can rebuild yours. They get old and the fluid inside seperates causing them to freeze.

All options have to be pre-loaded on a PCM and match for everything to work ok. Mine was done for around $260 if I remember right from autocomputerexchange.net out of FL. I had to give them my VIN number for them to pull the original factory spec sheet and match up every setting.

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Old 03-30-2013, 07:22 AM   #3
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Thanks for the input.
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