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Old 04-18-2009, 06:32 PM   #12
Tru2Chevy
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Quote:
Originally Posted by Formulalt1 View Post
Check the fuel pressure under WOT. My old pump gave fine pressure at idle and under partial throttle but once you put the demand of WOT or high rpms on it, it would pull back and buck. Might be ignition related but sounds like fuel delivery to me.
Quote:
Originally Posted by GP99GT View Post
like he said, check fuel pressure at WOT if you can, the pump may be failing...fuel cut at high RPM would cause those symptoms
Check your fuel pressure at WOT with the car under load (as in actually driving - not parked in your driveway).

- Justin
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