Question about Cars & Trucks
This was tested at the throttle body and at the fuel pump. could it be a sensor or just a bad pump
Only a guess as you don't state model or make. If you are testing fuel pressure at the throttle body you have a TBI system.
The ECM controls the fuel pump by allowing a short run time to prime and then requires oil pressure to keep the pump running.
If you are testing with out the motor running you are only getting the prime signal.
Posted on Apr 27, 2015
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Posted on Jan 02, 2017
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