Okay, there are a total of three relays and two fuses in the fuel system. The fuse and the two relays in my original post are for the pump. Then there is fuse 17 in the same box that powers the relay coils and the PCM. The last relay shouldn't be the problem as it turns on the power to the injectors but if the pump isn't running that one doesn't change that. Relay number one is turned on and off with the key while relay two is controlled by the PCM as part of the security system. Fuse 24 powers the pump through both of them. An easy way to test to see if it's the relay or wiring to the pump is to just use a short jumper wire in the relay socket from terminals 1 to 4 in both relays. That will power the pump if the fuse is good regardless of key position.
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Friday, February 18th, 2022 AT 8:55 AM