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Message: <blockquote data-quote="FlyingPapaya" data-source="post: 1578390" data-attributes="member: 31454">this may sound dumb but had an opportunity to grab two FPDM, either both are bad or mine isnt. got it to run for a minute or two, irratic idle, 6.2 psi fuel rail pressure relative to manifold vacuum as this scanner says at around 1k rpm. the onboard diagnostic tool on the dash says 126. i assume that means 12.6 and it died right after so not sure if it caught it at idle or grabbed that number right after it died. the inertia switch works as well.Edit: 11v at inertia switch, got someone to key car on and listen for pump and zero sound. Tested inertia switch itself as well. It's good.  Does power come from inertia switch to fpdm or from fpdm to inertia? Fuck i need a wiring diagram.</blockquote>