To test the relay pull it out of the relay/fuse board. Use a fused jumper to give 12v to pin 85 with another jumper from pin 86 to ground. The relay should click. An ohm meter on pins 30 and 87 should show infinite resistance ( open circuit ) when there is no power to pin 85 and should show low resistance ( closed circuit ) when there is power to pin 85. If that checks out, turn your key to the on position ( not start) and use your fused jumper between the plugs where pin 30 and pin 87 plugged in to the board. Be careful when figuring out wich pins went in wich plugs so you don't jump the wrong ones. When you do this the pump should start and you will be able to hear it hum. Don't run it for too long, just long enough to check that it comes on. If it doesn't come on use a volt meter to make sure you have battery power between the plug where pin 30 goes and ground. If not you may have a blown fuse or bad wiring somewhere. If you have 12v at pin 30 test the wiring between the fuse/relay board and the pump. Disconect the wires to the pump and use an ohm meter between the plug on the relay/fuse board where pin 87 plugged in and ground. You will read infinite resistance ( open circuit ) if there is no short.
where is the fuel pump relay for a 1991 Honda accord located
over top of fuse panel you will see or feel the relays.the top row second relay is your fuel pump relay
it is on fuse-relay box (0n drivers side).it is number 409.
It's block #5 on the fuse panel.
where is the fuel pump relay located on a 1991 ford econoline 250 van
The fuel pump relay is grounded through the ECM.
Your 1991 Mercury fuel pump relay switch is located on the firewall of the engine compartment. The relay switch will be near the center of the firewall.
Fuel pump relay is mounted on the firewall under the hood near the master cylinder.
The fuel pump relay on a 1991 Mercury Capri is located under the dash, near the main fuse panel. It controls when the fuel pump operates and provides power.
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The fuel pump relay is under the drivers side of the dash , right by the steering column.
In the tank