> > Hi Grant, > > There is always residual pressure in the supply side and if the engine > commenced operation without the fuel pump running, it would seem like it > was running on 1-2 cylinders ! Grant you must start working with a > voltmeter (and not a test light). The fuel pump relay supplies power to > the pump while the DCM supplies the ground. Also when the key is > switched on with the stock Digifant set up, the pump primes for about 1 > second and you can hear it. Does your pump do this. Following that, are > you delveloping fuel pressure (pressure gauge?). > > Good luck, JP John, I'm not sure if the pump was priming or not when this happens. The last few times its happened I just replaced the power supply relay with a spare and it works fine for awhile. I didn't even think about the fuel pump until your e-mail last night. If the new wire I installed last night doesn't fix the problem I will check the pump operation. Thanks, Grant |
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