so make sure to Use a clean oil drain pan, or coffee can to catch the excess fuel. sometimes more fuel will come out than expected. Filter is located under passenger side center seat. I doubt that OBD2 can cause fuel pumps to not run, but the coincidence is mild alarming. Pull relay 53 from fuse panel under hood. Essentially voltage goes in to the fuel pump driver, it modulates it then sends it to the fuel pump correct? So if I was going to test incoming voltages, which wires would I be looking at? And then which wires going out? Usually I would just replace the pump but before I start doing any cutting for access to the pump, I'd like to verify it isn't something else.Īnother variable to this problem is that I never had any sputtering, no hard starting, and that right before I tried and failed to start it the first time, I had plugged in an older (but used on other cars) ELM327 OBD2 transmitter. I haven't been able to locate a wiring schematic however, and was hoping for some help. I checked the relays and fuses under the hood, and the inertia switch is depressed, so now i'm at checking voltages for the fuel pump. So the other day, I moved my car from my driveway to the street, left it over night, then in the AM went out to start it up and the fuel pump isn't priming, won't run etc.
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