Can I use my stock 99 PCM .

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Aug 15, 2012 | 09:49 AM

#11

1FastBrick

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From: JunkYard

Quote:

Originally Posted by Rhino79

Yes a tuner locked pcm can be flashed over with gm equipment. I work at a dealer...lol. I have to do it regularly. Sure gm will give you an alternate cal for accessories, but not fans.

Yes, but as I stated earlier the factory truck OS already supports E fans. The tables are there, they are just not set to active settings. You need aftermarket software like EFI Live or HPT to activate and adjust the parameters.

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Aug 15, 2012 | 09:55 AM

#12

Rhino79

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From: Cabot, AR

Yes. And wire to pin 42 I believe. Easy to do. Shame it can't be done with a different is on a stock platform from that era, that would be great

Aug 16, 2012 | 07:17 PM

#13

getchusum99

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From: Baton rouge ,LA

I'm gettin confused here, sorry guys. Let me explain my situation a little better. I have my original never touched stock PCM out of my 99 silvy. I want to put a custom tune in it and activate my stockb05 efans that I have waiting to be put on. We have several good tuners here in the baton rouge area. The PCM I have in my truck now is out of an 03 and it has a custom tune, but like said, it is locked.