My pump stopped working and now it only runs if I run a wire from fuel pump to ground at the data link connector next to the battery. You can hear the fuel pump running when you use the wire, but I don't hear the fuel pump at all. With the wire I can drive fine(except I went for a longer trip and my car died and I had to get towed, but now it is working again). Without it, I can't start. I'm thinking it's electrical but I'm not sure what and where. Any ideas?
Black '93 MX-6 LS v6
Spoilers ETC body kit, blue dash, blue lighting around dash, blue mazda hood emblem, blue fog lights, short black antenna.. and a decent sound system.
Well the PCM demands an ignition signal before it will turn the fuel pump on so i would start there to be sure it's getting that signal first. You will need a wiring diagram to trace this down im afraid.
I think it's getting an ignition signal because the car actually starts when I force the pump to turn on. For some reason, the PCM is deciding not turn on the pump and I'm not sure why. The wiring seems to be fine. The only reason I've ever heard for the computer to not turn on the pump is that it thinks there's no oil pressure. I haven't check this yet, but what else would make the computer not want to turn the fuel pump on?
Black '93 MX-6 LS v6
Spoilers ETC body kit, blue dash, blue lighting around dash, blue mazda hood emblem, blue fog lights, short black antenna.. and a decent sound system.
I'm not talking about ignition. I'm talking about the signal from the ignition to the PCM. You can lose that signal and still get spark. When you jump the fuel pump you bypass that signal.
pm me your email and i will send you a wiring diagram, it is better than the haynes or chiltons.
93 626, ZE
Break it, fix it, write about it, repeat.
If you can find a bolt on my car that has not been turned, then let me know so I can replace that too! http://spaces.msn.com/members/swishercutter/
i had that problem too but mine was a simpler fix. my vac just sucks in the fuel
not sure if the pump is working but my car starts no problem without having the wires jumped. i ended up shutting down my tach by [fizzle]ing around with those wires
so be glad there is a thing called disconnect battery try again
I think the signal is from the distributor, but I'm not 100% certain. You should be able to check if you read the codes. IIRC it's code 3 or 4 for the sensor in the distributor. 1993-1995 Engine Controller Malfunction Codes
Actually, it can't be the sensor on the crank pulley, because 93 and 94 cars will run (though not quite as well) even if that sensor is disconnected.
I think Australian cars don't have a check engine light, but there is a way to read codes in Autralian cars, using an LED to connect the ten and gnd pins in the diagnostic box, IIRC.
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