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Thanks for posting
The two relays that turn on the fuel pump are the EFI and the circuit opening relay, the pump should run when the engine is cranking.
Use the diagnostic check connector under the hood, locate the terminals FP and B+ in the connector and put a short jumper wire between these terminals, turn the key on, the pump should then run, doing this bypasses the relays, let me know what happens, I'm going off line for tonight, will have more time in the morning after you reply.
Thanks for the reply, is there 12 volts at the B+ terminal in the check connector?
Thanks, ***** ***** to be sure I understand before going off in the wrong direction, there is no voltage when measuring from B+ to ground? The key has to be ON.
I'm going to look at a wiring diagram to see why that is.
In the fuse box under the hood pull the EFI main relay out, check voltage at each terminal where the relay plugs in, turn the key on, there should be about 12 volts to two of the terminals.
With the relay in does it click when turning the key on and off?
Is this a 4 cyl or V6?
Ok, could be a bad ground at the relay or an open wire between it and the B+ terminal at the check connector, it sounds like it's not working when plugged in. I'll try to keep this as simple as I can without having to send a diagram. Pull the relay again, make not of which two terminals have voltage with key on, there are two left, one is ground the other goes to the B+ terminal a few other components. With voltmeter plug the negative probe into either of the remaining terminals, touch the positive to the battery positive post, if you see voltage then that is the ground, do this for the other terminal, one of them is ground whichever shows volts. The remaining terminal goes to the B+ in the connectror, now make a short jumper wire from one of the terminals with 12 volts to the one that is not grounded. This will complete the circuit and there will be or should be voltage at B+ Let me know how that goes.
Sorry, I'm a little confused now, you said there was voltage to two of the terminals in the space where the relay goes.
Yes, That is what it sounds like, go ahead and put another one in and see what it does, I think it will fix this.
Let me know
You're welcome, good luck.
Ok, let's continue then, one other thing you may want to try to eliminate the fuel pump and the associated wiring but not relays: run a hot wire directly from the battery to the FP terminal in the check connector.