1998 XJ computer
02-01-2023, 09:09 PM
#1
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1998 XJ computer
I'm planning on picking up a 1998 XJ Saturday.
It's got 191k miles and owner says it needs a new computer because it's causing air/fuel mixture to be out of balance because of the signal the TPS is getting.
I've found sites that list reman PCM's for arounf $400. Anything to look out for or recommendations?
It's got 191k miles and owner says it needs a new computer because it's causing air/fuel mixture to be out of balance because of the signal the TPS is getting.
I've found sites that list reman PCM's for arounf $400. Anything to look out for or recommendations?
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cruiser54 (02-02-2023)
02-01-2023, 09:44 PM
#3
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Year: 1989
Model: Comanche (MJ)
Engine: 4.0
I would also test the TPS. The PCM is usually the last thing on the list of possible causes. Check things like the vacuum line to the map sensor, O2 sensors, etc.
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cruiser54 (02-02-2023)
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