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Old 02-05-2018, 10:41 AM
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Car: 1991 camaro z28
Engine: 5.7
Transmission: 700r4
Axle/Gears: 3.23
Question

I just had a carb swap and i was wondering if i could turn off the check engine light?
Old 02-05-2018, 10:46 AM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Question

Remove the bulb . You can also cut the brown/white stripe wire at pin e7 at the ecm. The ecm grounds the check engine light bulb when there is a malfunction.You need to retain the ecm it’s a vehicle speed buffer for the speedometer. Unless you get a buffer from a tpi maf or tbi car.
You can see that e7 is in the yellow connector at the ecm.
http://tpiparts.net/1227730_pinout_diagram

Last edited by Tuned Performance; 02-05-2018 at 12:32 PM. Reason: Additional information
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