[QUOTE=pizzaguy;1001614]The fuel pump ONLY has power for 2-4 seconds after you turn the key to "ON", unless the engine starts. If the engine does not start, power is removed from the fuel pump. Your thread title "Fuel pump has power but doesn't work?" is vague, you put a question mark at the end of a statement. Together, all of this leads me to believe your fuel pump is fine, but it does NOT "have power" and you are not getting anywhere because you are making invalid assumptions.

How I would troubleshoot this:
1) Strap the fuel pump relay with a rubber band and turn the key to ON.
2) Is the pump running? (You can usually hear it in the cabin, if not, remove the cover and listen (this means getting under the car).
3) If the pump is not running use a voltmeter to verify 12 volts into the pump, then measure voltage on the ground side of the pump, it better be less than .5 volt. If it is higher, fix your missing ground.
If you have power to the pump and good ground to the pump, the pump is bad. If you do not have power to the pump, replace the RCM.

Or, just replace the RCM as Zeracer told you to.

I carry a spare RCM, both because they fail so much and to help other drivers at Crossfire events. So, put your spare RCM in and see if that takes care of it - it probably will.[/QUOTE


Yeah I said it that way so it’s short and gets to the point for quick help. I stated the pump works fine so I know it’s not the pump. I don’t hear any noise from underneath when the key is turned either and I’ve also been under it while someone else turns the key to double check. I’ve never heard of your method #1 before, could you maybe explain how to go about that? How do I go about strapping the relay down with a rubber band, how does that work? I’m open ears to new knowledge or methods to make stuff work so by all means, educate me! Haha I’ve tested the cables that connect to the fuel pump with a voltage meter, I got the 12v needed but I didn’t know or know how to check the negative side to see if that’s in order. I also wasn’t aware that you could just replace the RCM and it would fix it hopefully. Thanks again in advance!