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pressure is not supposed to increase, its supposed to stay within a couple psi, its the pulse width/duty cylce that changes relevant to maf/map/tps/iat voltage signals sent to pcm.
f.p. can range lower or higher than 58psi depending on fuel consumption of engine. (with 2-5psi +/- if it runs in the low 40's (41-43psi) than you either
1)don't have a strong enough pump/proper voltage to pump
2)restricted filter
3)fpr leaking back/holding lower than normal pressure.
fpr's are known to go bad in gms,normally rail type or under intake manifold type like in the vortecs.
whats the milage on your car?
does bill have a adjustble fpr? if so tap in to return line @ T-block set to 53-58psi and than check car for f.p. @ wot.
if drops off than you have a pump/voltage issue
doesn't than you have a bad fpr
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Quote:
Originally Posted by SRGN
I never pulled into the staging beams at the track and saw a dyno in the other lane.
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South Jersey Racecraft
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