When to use jumper wire on fuel pump relay?
At the relay, unplug it, is terminal 30 hot, with engine cranking, It should be. If so, you can use jumper wire between terminal 30 and terminal 87, the fuel pump should run. If it runs that usually means the problem is on control side of relay, voltage and ground. The two top wires in diagram are voltage and both fuse protected.
Can you jump the fuel pump at the G Terminal?
However if I jump the fuel pump at the “G” terminal in the console plug it will run fine. If I dont jump it the fuel pump doesn’t run. Yes I changed the fuel pump relay and checked the fuse. Neither appeared to be bad and the old relay clicked and worked if I jumped the G terminal.
How many volts do you need to flip the switch on a fuel pump?
This must be over 10 volts to flip the switch in the relay. This will confirm whether or not the ECM is telling the fuel pump to run. 2. Check for continuity from the tan/white wire at the relay to the fuel pump. This will determine if power can get from the relay to the fuel pump.
What should I do if my fuel pump is not running?
If so, you can use jumper wire between terminal 30 and terminal 87, the fuel pump should run. If it runs that usually means the problem is on control side of relay, voltage and ground. The two top wires in diagram are voltage and both fuse protected. The voltage comes from pcm power relay.
At the relay, unplug it, is terminal 30 hot, with engine cranking, It should be. If so, you can use jumper wire between terminal 30 and terminal 87, the fuel pump should run. If it runs that usually means the problem is on control side of relay, voltage and ground. The two top wires in diagram are voltage and both fuse protected.
What kind of wiring do you need for a fuel pump?
At the wiring you need to find the 12v supply wire from the ECU to the fuel pump. Once that wire has been found cut that wire so that you now have half of that wiring running to the fuel pump, and the other half running to the factory ECU. Choosing a Relay The relayyou need should be a four-prong relay with at least 14-gauge wiring.
Where is pin 86 on a fuel pump?
Being that pin 86 is wired straight to the battery this will send a nice, clean voltage straight to the battery with no other obstructions to the fuel pump.
If so, you can use jumper wire between terminal 30 and terminal 87, the fuel pump should run. If it runs that usually means the problem is on control side of relay, voltage and ground. The two top wires in diagram are voltage and both fuse protected. The voltage comes from pcm power relay.