LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

didnt know how to quite search for this

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Old 10-31-2005, 11:22 PM
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didnt know how to quite search for this

when the car is cold (sitting over night) it will fire up as soon as i bump it... when its warm its more hesitant. sometimes i have to press the gas. also when its warm after driving itll have a high idle (1500-1700rpm) when put in park.....i cleaned the IAC and no luck... anybody with this problem? thanks
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Old 10-31-2005, 11:26 PM
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Re: didnt know how to quite search for this

Check your fuel pressure. Also, does it have a long start at all or is it just a high idle?
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Old 10-31-2005, 11:30 PM
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Re: didnt know how to quite search for this

fuel pressure 42lbs... high idle after driving and its only 75% of the time... doesnt do it everytime?
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Old 11-01-2005, 12:08 AM
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Re: didnt know how to quite search for this

Test your fuel pressure regulator.
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