No power to fuel pump 1999 sunfire

Assuming the pump relay is good, it could be the engine computer or something else. The computer needs to see oil pressure or RPM to continue to energize the pump relay. You could jumper the relay to verify.

i found the schematics on autozone.com in repair guides.

the issue isnt the relay, your going to have to chase it down with your volt meter or test light, sorry no quick fix and fancy trick on this one. if the fuse box or relay box isnt getting power you need to follow the power lead until you find power again. once you find power the issue will most likely be obvious, like a bad connection or loose ground..hope this helps

Have you checked the feul pump fuse, most likely is in th fuse panel on the inside of car.

Check fuses and check continuity on all wires one by one.

Hello mcammdf.
To properly test the fuel gauge circuit you will need to check the purple wire at the connector to the fuel tank.
Run a wire from the purple wire at the connector to body ground. If the gauge moves when you ground it the circuit to that point is good.
These cars are noted for fuel gauge problems and most probably the issue will be the sending unit in the fuel tank.

KL

ignition switch

no GM doesn't use a fuel pump reset.

check the pcm ignition fuse and the fuel pump injectors fuse.if all is good.your pcm could be the problem. the pcm it controls fuel pump.first have car hooked up to scanner to look for pcm failure code.

Fuel pump relay is bad or fuel pump is bad (sometimes the pump seizes) and creates a load thats blowing the fuse.If both are good then there's a short in the fuel pump circuit.