Quent

I was at idle on my Crockett 565 Whipple EFI the other day and the engine died. Very unusual. I noticed that my SX fuel pump did not run when the key was turned on. After a 5 mile tow I checked the fuses visually and with an ohm meter. All good. I checked the relays. All good. I connected the fuel pump directly to the battery. It would run but the engine still wouldn't start. I put a new SX fuel pump on. Same symptoms. It would not run unless directly connected to the battery. I checked for voltage at the pump during the first 10 seconds after turning the key on and got nothing. I did get voltage at the pump when cranking. The fuel lines to the tank are clear.

I talked to Tyler Crockett and he said it may be the fuel pump driver in the MEFI 4A. He just sent me a new MEFI 4A with my program in it. After installation I still have the same symptoms. Other than trading boats, how can this thing be fixed? Thanks Quent

TylerCrockett

iTrader: (1)

Quent the engine should start if you hook the pump up direct as long as you have fuel pressure at the fuel rail. You may have a issue with the wiring harness going to the ignition relay. I will call you today. Tyler

800XCR

iTrader: (2)

Tether