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3rd Generation Camaros 1982-1992 Camaros

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Old 05-06-2009, 09:33 PM   #1
race87
 
Drives: 85 and 87 irocs
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Unhappy help can't get my check engine light off?

I'm working on a 87 iroc with a 350 tpi. It runs pretty good but when its idling, it idles fast then slow. I can't keep the check engine light off to check the codes. The book says it could be a bad prom or not grounded well. I've checked the grounds that a can see easy. The computer #is 1227165, the prom could be an after market? Don't have the # on it tonight. Anyone got any Ideas?
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Old 05-06-2009, 09:36 PM   #2
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What codes are you getting? Do you know how to pull codes?
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Old 05-06-2009, 09:49 PM   #3
race87
 
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If I take the cable off the or unplug it the light come right back on and when I try to get the codes the light just stays on ?
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Old 05-06-2009, 09:51 PM   #4
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So your not getting code 12?
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Old 05-06-2009, 09:52 PM   #5
race87
 
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No just a solid light.
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Old 05-06-2009, 10:24 PM   #6
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If no code 12 then the ECM is bad. Here is a list of ECM's that will interchange. Keep in mind you still need your PROM out of your ECM to plug into your new one.

1987-90 Astro/Safari Van with 2.5L 4 cylinder
1987-88 Blazer S10/Jimmy S15 with 2.5L 4 cylinder
1991 BlazerS10/Jimmy S15 with 4.3L 6 cylinder (with 1227165 ECM)
1991 Bravada (with 1227165 ECM)
1987 Camaro/Firebird with 5.7L 8 cylinder
1988 Camaro/Firebird with 5.0L 8 cylinder with MFI
1988 Camaro/Firebird with 5.7L 8 cylinder
1986-87 Camaro/Firebird with 5.0L 8 cylinder with EFI
1989 Camaro/Firebird with 5.0L 8 cylinder with MFI
1986 Cavalier/Cimarron with 2.0L 4 cylinder and manual trans
1989 Camaro/Firebird with 5.7L 8 cylinder
1986 Firenza/Skyhawk/Sunbird with 2.0L 4 cylinder and manual trans
1986-89 Corvette
1987-91 S10/S15/Sonoma with 2.5L 4 cylinder
1991 S10/S15/Sonoma with 4.3L 6 cylinder (with 1227165 ECM)
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Old 05-07-2009, 07:55 AM   #7
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Something simple could be your gas cap is lose.
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Old 05-07-2009, 03:06 PM   #8
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Quote:
Originally Posted by Sierra View Post
Something simple could be your gas cap is lose.
OBD I doesn't have a code for that.
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Old 05-07-2009, 03:07 PM   #9
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black tape...sold in rolls in most hardware stores. $.79. Solved.
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Old 05-08-2009, 09:32 PM   #10
race87
 
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Yea I had to use the tape on a dodge one time,but I was trying to get it fixed so it would idle right etc.
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