ecm chip change
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Joined: Aug 2012
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From: madison wi
Car: 91 camaro rs
Engine: 350 tbi. Rv cam. Edelbrock headers
Transmission: stage 3 700raptor 2400 stall
Axle/Gears: 3.42 posi+disc brakes
ecm chip change
Hey guys dumb question but I don't have my Camaro right now to figure it out.
What tools do I need to get to the ecm and take the little plate off to change chips. I know its a Phillips screw driver then some tiny little bolts but I can't remember the size of the bolt heads. Thanks
What tools do I need to get to the ecm and take the little plate off to change chips. I know its a Phillips screw driver then some tiny little bolts but I can't remember the size of the bolt heads. Thanks
Joined: Dec 2004
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: ecm chip change
7mm to remove the access cover and 10 mm for the bracket bolts.
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: ecm chip change
If this is your '91, the ECM is likely in a slide mount. Push the bottom of the ECM toward the front of the car, should hear the velcro let go.
Once it clears the bottom ledge of the mount pull it straight down. Then the two screws (1/4" hex head if stock) for the small cover to access the chip.
RBob.
Once it clears the bottom ledge of the mount pull it straight down. Then the two screws (1/4" hex head if stock) for the small cover to access the chip.
RBob.
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