1995 Pontiac Sunfire will not start

SMOKEY40

MEMBER
1995 PONTIAC SUNFIRE

Electrical problem
1995 Pontiac Sunfire 4 cyl Front Wheel Drive Automatic

my car has a completely rebuilt engine with approx. 22,000 miles, at same time of I installed a new fuel pump. Problem is a rat chewed up several wires in the wiring harness on the right lower side, just before the computer. I repaired the wiring, paying close attention to color code. The car will turn over, but will not start. We replaced the fuel pump relay in fuse box under hood, car still does not start. It started and ran great before rat chewed wiring. Does anything have to be done to computer before it will start? I disconnected the positive side of battery overnight, I was told computer would reset itself. And car still won't start, Thanks for your help.

3 Replies

JACOBANDNICKOLAS

MECHANIC
108,192 POSTS

Are you getting both spark and fuel to the engine? Will the car start with starting fluid?

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Friday, April 24th, 2009 AT 9:05 PM

SMOKEY40

MEMBER
2 POSTS

The engine has a good spark. There is no power getting to the fuel pump. We disconnect the wiring at fuel tank and use a jumper battery and the fuel pump worked good. Tried to start while jumper battery was powering fuel pump, but engine would not start while doing this. In one of the other Q&A someone had a broken wire (drk grn/white stripe) which powers the fuel relay. One of the wires the rat chewed up was this same wire. I guess I need to check to see if it has been chewed in another place. Thanks.