ok i rented a fuel pressure gauge. i hooked it up to my fuel rail and put my key to the on position. My gauge read 30 psi. i cant crank my engine cuz it dosent run but is 30psi enough to start a motor?i want to know if my fuel pump works
If you get 30# when the key goes on, your pump is running. It may not be producing enough pressure or volume, but it is running.
Check spec in a repair manual for–
Year
Make
Model
Engine
… to know just what your engine requires. Some will run very well at 10 or so pounds, while others won't even try to light up until they get 60 or so pounds.
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