Hi, My Clubby stopped in the driveway the other day.... realised the fuel pump wasn't running. It's an in tank Walbro 255ltr/min. Ended up changing the oil pressure switch. Now after 2-3 seconds of the key being turned to the on position the fuel pump runs constantly and she winds and won't fire. It's not until a pull the EFI relay that the pump will stop. Fuses all okay. Fuel pump relay getting power. If I bridge the fuel pump relay though it doesn't make the pump work?? Put the old oil pressure switch in - back to no fuel pump at all. I assume I have a wiring problem on the OEM side - hoping not the ECM. Has anyone had this problem before? What did you find?