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91 z28 305 tpi big probs help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!

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Old 10-31-2012, 09:24 PM
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Angry 91 z28 305 tpi big probs help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!

I have '91 Z28 Camaro. 305 TPI, fuel injection. I bought this car a week ago. Here's my problem, it will not cold start on it's on you have to pat the gas pedal, it idles from 1500-1900, if you go full throttle and let off the car will start to shutter and shake then the motor shuts off. I have replaced the throttle position sensor. ok now the car will not idle at all can keep car running if i hold the gas help

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Old 11-06-2012, 09:21 AM
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Re: 91 z28 305 tpi big probs help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I would ohm test the fuel injectors& check how much fuel pressure you have
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Old 01-13-2013, 08:22 AM
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Re: 91 z28 305 tpi big probs help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

It could be a bad IAC as well. Have you checked or replaced it?
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