C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

c 4 Throttle

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Old Jun 6, 2016 | 05:06 PM
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Ok the car hesitates to start butt will start and idles fin and will rev up When you drive for a few minuets the pedal go's away butt it will still idle gust no throttle costing down the road turn car off and re start it will run for a bit and do the same. gas stays at 35 PSI All time
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Old Jun 7, 2016 | 09:38 AM
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Check for carbon build up in throttle body (butterflies) and IAC passages.
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Old Jun 7, 2016 | 11:39 AM
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First post......perhaps tell us a bit about you and/or your car, so we can help you with your questions (and your spelling ).
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Old Jun 8, 2016 | 12:15 PM
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Helps with ..Year and Engine
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Old Jun 8, 2016 | 01:16 PM
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Year and have you ever changed the fuel filter?
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Old Jun 23, 2016 | 06:26 PM
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It is a 1988 with L98 and i did change fuel filter and cat is cleaned out .
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Old Jun 23, 2016 | 06:31 PM
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I thought the pressure should be 42 down to 37 but not sure on yours. Might be a leaky pulsater in the tank if it is to low. Or weak fuel pump. Does the fuel pressure go up if you pull the vacuum line off the FPR and is there any fuel in it?

Last edited by antfarmer2; Jun 23, 2016 at 06:36 PM.
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