fuel pump problem

[AaronWhitt82]

This thread is almost 5 years old... You should start your own thread and you will get more replies.

[Deanw]

I have the exact opposite problem. I just fired my 99' möbius up for the first time this season and I noticed as soon as I hooked up my battery the fuel pump started running. Never shut off even with key off. It totally filled my cylinders and fuel locked the motor. I would easily assume float stuck but why would the pump start pumping even with key off?

[zabooda]

It shouldn't. In fact, the pump is off until the oil pressure sensor energizes the circuit.

[Deanw]

It shouldn't. In fact, the pump is off until the oil pressure sensor energizes the circuit.

Your absolutely right. It shouldn't. But apparently when the dealer put my battery cable onto the starter there was no boot covering the post to the fuel pump safety switch somover time the batttery cable loosened enough to turn an 1/16 of an inch and make contact with that post. After further investigation I noticed that even with a boot over the terminal, the close proximity between the two terminals it would only be a matter of time before one of the wires would wear a hole in the boot. I ended up making an HDPE "barrier" to keep them separated. Works great now. Thanks for the forum. Lots of useful info here

[zabooda]

I'll have to check mine. Thanks for the feedback.