BlackedOut LS1

iTrader: (4)

So this Aeromotive fuel pump been giving me troubles, either that or the Racetronix harness. The car wouldn't start a few days ago but I found it was just a blown 20 amp fuse on the Racetronix harness which I thought was odd enough. Now the fuel pump looks to not be getting power and all fuses and relays under the hood look to be good. The relays all click when you turn the key to acc, I put a test light on my wire harness and I'm only getting power from the main line coming from the alternator. I'm not getting a light from any wire leaving the relay going to the fuel pump, the grey wire powers the pump no light. I spliced the main line and the grey power wire to jump power straight to it and still nothing. I just wanted to know if you guys may have some insight Bc I was told by the engine builder that these Aeromotive 340's didn't give problems.

stevieturbo

Well your testing points towards a relay issue, not the pump.

So remove and test the relay.