Pcm

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06-14-2015, 06:23 PM

benc48

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Join Date: Jun 2015

Location: South Carolina

Posts: 21

Pcm

If I had to change the PCM , Does it need to be flashed by GM ?

06-14-2015, 08:07 PM

goaliemo

Senior Member

Join Date: Mar 2014

Location: Louisiana

Posts: 1,363

Depends.
If you buy it new, yes.
If you get it from a car at the junk yard, as long as it is the same year, and make sure it matches your tranny (auto/manual) you shouldn't have to.

06-14-2015, 09:08 PM

benc48

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Join Date: Jun 2015

Location: South Carolina

Posts: 21

Thanks for the info .

06-14-2015, 11:09 PM

derf

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Join Date: Jul 2005

Location: Slightly off center

Posts: 10,309

for the record, the PCMs on the S series are VERY VERY VERY VERY rarely the problem; for the volume of cars out there, the failure rate is miniscule.

06-15-2015, 12:56 AM

goaliemo

Senior Member

Join Date: Mar 2014

Location: Louisiana

Posts: 1,363

Hey bud, I was wrong. After further info, s cars before 2000 don't have a bcm, so they are car specific.
Derf knows his stuff, probably better off listening to him.