With a warm engine and timing light ready (engine running) disconnect the single connector (black and brown wire) located on the passenger side firewall. It sticks out of the main wiring harness. Set the timing by rotating the distributor. Clockwise to ****** the timing and counter clockwise to advance the timing. Lock the distributor in place @ 4 deg. before top dead center. Shut the truck off and reconnect the black and brown wire.
SOURCE: I am trying to find the pressure for fuel injector on a 89 chevy
should be between 9-13lbs for throttle body cars, higher for separate fuel injectors
SOURCE: HAVE AN 89 CHEVY 4WD w/ 350 5.7> l. will not go
Has the fuel filter been replaced with the fuel pump or it could be a restriction in the exhaust. In order to check that properly you would need a back pressure gauge and measure back pressure or just disconnect exhaust from the manifolds and drive it around and see if all the power is back.
(IT'S GOING TO BE LOUD) Let me know.
Testimonial: "Thats something i havent thought of and makes good sense! thx> if that was it ill post it>"
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