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1991 camaro wont idle

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Old 11-22-2012, 12:33 PM
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Car: 1991 Z28 Camaro
Engine: 5.0
Transmission: 700R4
Axle/Gears: 2.73
1991 camaro wont idle

I've got the 305 TPI and after it warmed up it would run fine, and I found a leak at the EGR gasket, I just finished replacing it and now the car will not run at all unless I open the throttle a little, pull off the brake booster vaccum line, or I unscrew the IAC about half way. Any ideas?
Old 11-22-2012, 01:01 PM
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Car: '91 Camaro Z28
Engine: 383 Vortec HSR
Transmission: Pro-Built 700-R4;Vig 4000 stall
Axle/Gears: Moser M9 9" / 3.89
Re: 1991 camaro wont idle

Is it throwing any codes with the SES light? Sounds like you might need to clean/reset the IAC.
Old 11-22-2012, 01:05 PM
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Car: 1991 Z28 Camaro
Engine: 5.0
Transmission: 700R4
Axle/Gears: 2.73
Re: 1991 camaro wont idle

Originally Posted by RevItUpZ28
Is it throwing any codes with the SES light? Sounds like you might need to clean/reset the IAC.

No, no codes yet. Its defiently not getting air, just cant figure out whats to blame. How do you reset the IAC?
Old 11-22-2012, 01:24 PM
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Car: '91 Camaro Z28
Engine: 383 Vortec HSR
Transmission: Pro-Built 700-R4;Vig 4000 stall
Axle/Gears: Moser M9 9" / 3.89
Re: 1991 camaro wont idle

https://www.thirdgen.org/tpimod2
Old 11-22-2012, 01:38 PM
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Car: 1991 Z28 Camaro
Engine: 5.0
Transmission: 700R4
Axle/Gears: 2.73
Re: 1991 camaro wont idle

Still wont start, still have to hold the throttle open a tad to do it, but as soon as I let it close, the cars still dies
Old 11-22-2012, 02:28 PM
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Car: 1991 Z28 Camaro
Engine: 5.0
Transmission: 700R4
Axle/Gears: 2.73
Re: 1991 camaro wont idle

Originally Posted by Jhook
Still wont start, still have to hold the throttle open a tad to do it, but as soon as I let it close, the cars still dies

Actually, think I found the problem. I think NAPA sold me the wrong IAC, I think I've got the one for the TBI system instead of TPI...go figure.
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