Did my fuel pump just suddenly die?
#1
Did my fuel pump just suddenly die?
Car's been running great. Just came back from lunch, went over the hump at the end of the driveway and my car dies. I can start it, but I can barely keep it idleing and it will not rev. I have checked for any loose connections that I can think of:@fuel pump, ecu, ecu ground, cas. Any suggestions? Please help I do not want to have to pay for a tow.
#10
Thanks guys. Just had my car towed home, no charge thanks to a coworkers CAA. Intercooler piping is fine, actually it did come apart once in the past but car still ran fine, just no boost. I am using the Link MAP sensor. I will look into the ignition in a couple of days. I am going to a friends cottage tomorrow(in a different car of coarse). What should I look for in the ignition?
#11
Boost Pope
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The symptoms described strongly suggest a fueling issue. Could be a clogged filter, an ailing pump, maybe even an issue with the electrical supply to the pump.
Filter is easy- change it. Don't even think about it, just replace the damn thing. You know you never have before. It's time.
Electrical supply ain't hard- use a voltmeter to measure voltage across both terminals of the pump. Should be within a few tenths of system voltage.
Pump itself requires a pressure gauge and some fittings. Install a tee in series with the hose going to the front of the fuel rail, and connect to gauge. Inexpensive and highly accurate gauge can be purchased here, or crappy gauges can be had for a few dollars more from CT or similar. Fuel pressure should be 35-45 PSI at idle, 40-50 at cruise, and ~10PSI more with the vacuum line disconnected from the fuel pressure regulator aft the fuel rail.
Filter is easy- change it. Don't even think about it, just replace the damn thing. You know you never have before. It's time.
Electrical supply ain't hard- use a voltmeter to measure voltage across both terminals of the pump. Should be within a few tenths of system voltage.
Pump itself requires a pressure gauge and some fittings. Install a tee in series with the hose going to the front of the fuel rail, and connect to gauge. Inexpensive and highly accurate gauge can be purchased here, or crappy gauges can be had for a few dollars more from CT or similar. Fuel pressure should be 35-45 PSI at idle, 40-50 at cruise, and ~10PSI more with the vacuum line disconnected from the fuel pressure regulator aft the fuel rail.
#20
Elite Member
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What happens if you get the car running and manually rev it by pulling the throittle open with your hand on the cable or arm thingy? Do you hear it open and close? Did you check ur spark? I didn't see in the thread if you had or not.