1985 Pontiac Fiero fuel pump problems

RAMSESPRIDE

MEMBER
1985 PONTIAC FIERO
4 CYL
2WD
AUTOMATIC
143,000 MILES

Ok so ive replaced the fuel pump, realy and harness and I have no power to the pump meaning I turn the key and it wont activate the pump to "charge" the fuel system.
i checked the fuse in the fuse panel and it is still good, removed part of the fuel line to check for flow and not a drop of fuel is expelled.

i turn the key and no sound comes from the relays(theres 2 both replaced) nor the fuel pump. Installation of the pump was smooth and was rewired correctly as I kept the instalation instructions for the new pump and took a picture of the old ones setup for a reference.
The key switch on the vehicle can turn up to the on position without a key inplace however it cannot engage the starter without a key in place but a push button starter was mounted under the dash in an inconpicous area to start. Could the damaged keyswitch be the cause of my headache?
ive already dumed 70 into the car and nothing yet and its begining to annoy me. Its a great car with comparativly awsome gas mileage and I dont want to give it up because of some stupid reason my automotive knowledge cant figure out.

1 Reply

HMAC300

MECHANIC
48,601 POSTS

Yes the damaged switch could be part of your problem. Bu before you just go ahead and try to fix it, first turn the key on and see if ther eis power coming to the fuel pump from the harness. If there is it could be the fine wires that go on the inside o the tank to the pump itself. Those are known to go bad if handled roughly or age. Also check the wireing going to your startr button as that may ahve por contacts or just not connected or wired very well.