does this sound like a pcm going bad??
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TECH Apprentice
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Joined: May 2006
Posts: 312
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From: Orland Park, Illinois
does this sound like a pcm going bad?? Problem started when i got the car back from outlaw.
I had no AC. tried EVERYTHING to get it to work. I ended up putting on a separate switch to engage the compressor.
then a few weeks ago i got a ses for the IAT. replaced the sensor. ect..... no luck.
right before that my gas gauge went. then my temp gauge. now my fans are staying on after i turn the car off.
I went to finish line performance (sponsor on here) and they said the ground from the IAT is putting out 5v. i have a pcm on its way (used from same model car) and am going to get my tune switched to the new pcm.
IF this is the pcm going bad what can i do to make sure the new one doesn't start frying the same parts?
I had no AC. tried EVERYTHING to get it to work. I ended up putting on a separate switch to engage the compressor.
then a few weeks ago i got a ses for the IAT. replaced the sensor. ect..... no luck.
right before that my gas gauge went. then my temp gauge. now my fans are staying on after i turn the car off.
I went to finish line performance (sponsor on here) and they said the ground from the IAT is putting out 5v. i have a pcm on its way (used from same model car) and am going to get my tune switched to the new pcm.
IF this is the pcm going bad what can i do to make sure the new one doesn't start frying the same parts?
It's much more likely a harness fault than the PCM itself.
I'd inspect all of the block-chassis, chassis-PCM ground
straps first off. Temperature sensor faults can really muss
up its mind and the more bogus data it gets the flakier it
all will be.
I'd inspect all of the block-chassis, chassis-PCM ground
straps first off. Temperature sensor faults can really muss
up its mind and the more bogus data it gets the flakier it
all will be.
12 Second Club
Joined: May 2006
Posts: 222
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From: Vegas
Originally Posted by jimmyblue
It's much more likely a harness fault than the PCM itself.
I'd inspect all of the block-chassis, chassis-PCM ground
straps first off. Temperature sensor faults can really muss
up its mind and the more bogus data it gets the flakier it
all will be.
I'd inspect all of the block-chassis, chassis-PCM ground
straps first off. Temperature sensor faults can really muss
up its mind and the more bogus data it gets the flakier it
all will be.
