Originally Posted by Tr00p3r
Does the 93 ssei have the regulator? My numbers are close to 39/40 at idle but drop under accel almost would love to define my issue as pump but buddy re borrowed guages to continue our gto project, I think unless you guys scream I need a new pump?
yes the 93 would have an FPR. reverify your pressures. At idle you should have about 41, disconnect the vacuum line from the fpr it should shoot up to around 50, put the vacuum line back on and it should drop to 41 again. turn off the engine and its should be able to hold near that pressure for several minutes while it bleeds off. The bleed off should be a slow process, if you see the pressure drop right off you have other problems.