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89 iroc runs great than bad than good. Ecm?

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Old Apr 30, 2013 | 09:39 AM
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grhman
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89 iroc runs great than bad than good. Ecm?
89 IROC 5.0 runs great than after i stop it will run bad almost everytime but will eventually run great again. Any help will be appreceiated
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Old Apr 30, 2013 | 09:48 AM
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Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: 89 iroc runs great than bad than good. Ecm?
Originally Posted by grhman
89 IROC 5.0 runs great than after i stop it will run bad almost everytime but will eventually run great again. Any help will be appreceiated
Any codes? That could be a bad ecm, we need more details.
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Old Apr 30, 2013 | 09:50 AM
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Re: 89 iroc runs great than bad than good. Ecm?
did have a code once was throttle positioning senser i replaced it so no more codes. also i installed it by ear with the lowest idle did not know any other way. Please help
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Old Apr 30, 2013 | 10:03 AM
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ninetyone
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From: Delaware
Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: 89 iroc runs great than bad than good. Ecm?
Originally Posted by grhman
did have a code once was throttle positioning senser i replaced it so no more codes. also i installed it by ear with the lowest idle did not know any other way. Please help
https://www.thirdgen.org/tpimod2
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