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Fuel Pressure Regulator open? Starts won't run 200 1986

posted by  johnbrady on  Thu Sep 1 16:29 CST 2016
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last visit: Wed Feb 26 12:28 CST 2014
[RELATED]

Car would start but not run. Bypassed fuel pump relay, checked FI relay, disconnected MAF, full tank; no luck. No fuel at vacuum input to fuel pressure regulator (FPR). Clamped down (pinched off a little) on the return line from the FPR and the engine runs. Has anyone seen a FPR fail open? Could I still have a clogged filter or weak pump?
Thanks in advance,
John






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