Question about Cars & Trucks
Well the fuel pump in the gas tank provides fuel pressure.
Have you checked it with a gauge at the fuel injector rail ?
Posted on May 06, 2013
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Posted on Jan 02, 2017
SOURCE: 1991 oldsmobile cutlass supreme
Check for fuses/power/ground to the engine computer (or injector drive computer) whatever the case is.
Spark, fuel pump, and starter all are independant of the fuel injection computer.
Either the computer itself has gone bad, or it is not receiving power or ground, or wiring to the injectors might be bad...
Posted on Aug 28, 2008
Your fuel pressure should be at least 40psi at all times. The most common problem is the diaphram inside the "fuel pressure regulator" fails. This in turn sends excess fuel into the vacuum line and intake. I would replace the fuel pressure regulator.
I hope this information helps you, and I wish you luck with your repair.
Posted on Apr 26, 2009
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