Hi all,
Rewiring my fuel pump with a relay to suit a Walbro 460l but have ran into some problems..
It's wired as follows
On the relay terminal 30 goes to the battery via 8g wire
Terminal 85 goes to the chassis
Terminal 86 is from the old fuel pump wire (the side going to the fuel pump controller)((the trigger wire))
Terminal 87 is going to the fuel pumps positive wire.
The pump is earthed directly to the chassis.
Problem is the car turns over but won't fire. I can hear the fuel pump priming. It only runs when using the original positive wire on the pump
I have tried using different relays
Disconnecting the fuel pump controller
I even ran a wire directly from the battery to the fuel pumps positive just to see if it would start... And it wouldn't
The previous owner had wired the pumps earth directly to the body
Any help appreciated!!