Stock PROM
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Joined: Oct 2003
Posts: 1,668
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
Stock PROM
Anyone know the GM part number for the MAF style 2.8L MPFI PROM ? I can't find it anywhere, and the guys at the dealership aren't being helpful.
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Joined: Feb 2002
Posts: 3,266
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From: Moved... GA still, more garage space!
Car: 87 Red/Blk Bird loaded 3.4L & 700R4
Transmission: Th700R4
Axle/Gears: 3.73
Auto or Manual? Had to replace mine recently.... took them my chip and they read the numbers off it. I will see if I acn find teh receipt. Going to be a tough one 2 find
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Joined: Feb 2002
Posts: 3,266
Likes: 1
From: Moved... GA still, more garage space!
Car: 87 Red/Blk Bird loaded 3.4L & 700R4
Transmission: Th700R4
Axle/Gears: 3.73
Yep they sure do. that where Igot mine. Not luck yet on the paperwork yet, but will have more time to look tonight
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From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
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Joined: Jun 2002
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From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
I just called my dealership because I they know me by name. They said for an 86 v6 mpfi their are 4 pages of prom chip partnumbers. You need to do as shannon did and take them your current one to duplicate it. Or just have a custom one made.
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Joined: Feb 2002
Posts: 3,266
Likes: 1
From: Moved... GA still, more garage space!
Car: 87 Red/Blk Bird loaded 3.4L & 700R4
Transmission: Th700R4
Axle/Gears: 3.73
4 pages...crap! Yeah that wil probably mean mine might work, but might not. Take out your stock one & let them match it! And any GM dealer can help. So if the Pontiac place is being a pain, go to the Chevy place... I always went to the Chevy place. They teazed me about bringing a Pontiac over when Pontiac was 2 doors down...
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Joined: Jul 2001
Posts: 4,461
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From: BFE, MD
Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
For $10 + shipping I'll sell you my 86 ecm w/the 85 PROM chip. Don't seem to need it anymore for some reason 
Last edited by Project: 85 2.8 bird; Dec 1, 2004 at 03:07 PM.
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