1993 Chevrolet Astro Repair Question
Fuel pump problems?
Answer
Check the fuel pressure with a gauge if its within specs-no fuel on the injector use a noid lite on the injector harness and check if the injector circuit is functioning if not could be no power to the injector or the injector driver circuit on the computer is defective
what does fuel pressure have to do with it? it has power to the two injector, but there is no power to the fuel pump relay or to the pump and when hot wiring the fuel pump it gets pressure to the top but when cranking the two injectors or gas sprayers are not spraying gas into the throttle body
EFI system has to be in specs in order for your vehicle to run right-
It has power to the injectors-but its not energizing providing fuel-sounds like computer driver circuit for the injectors-no power to the relay and pump-check the fuel pump fuse-
i got it thanks , the ecmb fuse was blown , when i put the new fuse in then the wires to the oil sending unit started smoking ( 2 grounded out on frame) the circuit runs thru the sending unit and contols relay and pump thanks rasmataz
Did you get it going or still having problems?