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Did rocker arms and injectors Now the

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Old Sep 14, 2005 | 10:59 AM
  #1  
DA BRONX's Avatar
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From: PALM CAOST FL
Car: 1987 GTA
Engine: 305
Transmission: T-5
Axle/Gears: 373
Did rocker arms and injectors Now the

OK i did 1 6.1 roller rocker and new 24lb injectors on my 88,350 TPI. I put the top back together and now she will surge at idle. As soon as she warms up, it will almost seem like she was running normal again. Any help on why it surges would be great!
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Old Sep 14, 2005 | 11:27 AM
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From: louisville, ky
Axle/Gears: '01 3.42 10 bolt
did you get a chip or change the injector constant in yours? if not, that is probably why. also check for vacuum leaks.
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Old Sep 14, 2005 | 12:26 PM
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From: PALM CAOST FL
Car: 1987 GTA
Engine: 305
Transmission: T-5
Axle/Gears: 373
Originally posted by 87zjeff
did you get a chip or change the injector constant in yours? if not, that is probably why. also check for vacuum leaks.
How do you change the injector constant ?
Im not sure what you mean? I didnt change the chip.

Last edited by DA BRONX; Sep 14, 2005 at 12:52 PM.
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Old Sep 14, 2005 | 04:55 PM
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From: louisville, ky
Axle/Gears: '01 3.42 10 bolt
when i went to bigger injectors, i didn't change my chip. all my car would do at idle is surge. the injector constant is the part of the programming that tells the ecm how big your injectors are. so, your ecm still thinks you have 22lb injectors.
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Old Sep 14, 2005 | 05:31 PM
  #5  
DA BRONX's Avatar
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From: PALM CAOST FL
Car: 1987 GTA
Engine: 305
Transmission: T-5
Axle/Gears: 373
Originally posted by 87zjeff
when i went to bigger injectors, i didn't change my chip. all my car would do at idle is surge. the injector constant is the part of the programming that tells the ecm how big your injectors are. so, your ecm still thinks you have 22lb injectors.
Oh,so the only way to get rid of the surge is to get a chip made or put the stock injectors back in?
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Old Sep 15, 2005 | 09:41 AM
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From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
yup
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Old Sep 15, 2005 | 04:13 PM
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From: PALM CAOST FL
Car: 1987 GTA
Engine: 305
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Axle/Gears: 373
thanks
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