I did a search and read many post on how to trouble shoot the fuel pump but non have the issues I have. When I turn my key to run without starting it, the pump comes on and keeps on running. It'll run forever as long as the key is on. It has never shut off for me. With it running I can get 32psi on my gauge. As soon as I turn the key off, the gauge will drop to zero in about 3 seconds. When I first turn the key on, the pump will hum like I think it should, a few seconds later it will hum w/a spraying sound in the tank. It's possible it could just be the fuel being sprayed back into the tank. But what would cause my pump to run continuously and the rapid drop in pressure as soon as the key is turned off?
My drivability problems consist of hard starting and when at operating temp the car will ping badly. On hotter days it's worse. It'll pull hard through 1st and 2nd and then anything more than 1/2 throttle in 3rd is when it gets nasty. Timeing is set at 10* and everything else seems to fine. I'm thinking the pinging is caused from the fuel system. Can someone give me a run down on what tests I should perform to locate the problem?
My drivability problems consist of hard starting and when at operating temp the car will ping badly. On hotter days it's worse. It'll pull hard through 1st and 2nd and then anything more than 1/2 throttle in 3rd is when it gets nasty. Timeing is set at 10* and everything else seems to fine. I'm thinking the pinging is caused from the fuel system. Can someone give me a run down on what tests I should perform to locate the problem?