fuel pressure issue?
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Joined: Sep 2003
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
fuel pressure issue?
after installing my HSR, i noticed when i start the car, the idle is real sketchy, if i touch the throttle it chokes pretty bad but once it warms up it runs fine. and if i drive it right after i start it, once its about above 2k rpm. it drives fine. i increased my fuel pressure about two full turns (almost completely screwed in) and i got the problem to go completely away so im guessing its a cold start issue with the stock ecm and only reading from the maf? should i leave the fuel pressure where its at now or would that be too rich? or should i take it back to where it idles crappy when cold but does fine once warmed up? i lost my adapter so i cant tell what my fuel pressure is right now, but those with the HSR regulator.. maybe you can tell me abotu what psi im pushing when the screw is about two full turns away from being all the way in?
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mdtoren
Tech / General Engine
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Aug 16, 2015 05:45 PM




