What does a fuel pump wiring harness do?
Carter Fuel Wiring Harnesses are designed to replace worn, damaged, or corroded electrical connections, delivering reliable performance and long life.
How do you test a fuel pump wire harness?
Use the jumper wire to power the fuel circuit and energize the pump. Connect the digital multimeter to the battery and the pump, both on their negative terminals. Conduct the tests using a live circuit wire. If the meter indicates a reading of more than 0.1 then this indicates a loss of voltage power.
What gauge wire should I use for a fuel pump?
Registered. 14 gauge will handle all the current you need for your pump. It’s rated for 32 amps for chassis wiring, and a short section of it will cause no problems at all.
How many amps is a fuel pump relay?
A TBI pump may have a normal current draw as low as 3 to 5 amps, with PFI pumps pulling 4 to 6 amps on average. A GM central point injection (CPI) pump (55 to 64 psi) needs 8 to 10 amps.
Why does my fuel pump wiring harness stop working?
Over time, the wiring harness connectors may corrode or break, weakening the electrical connection. If your fuel pump stops working, or only works intermittently, the fuel pump wiring harness may be to blame. If the fuel pump wiring harness needs to be replaced, visit O’Reilly Auto Parts.
How do you replace the harness on a fuel pump?
Start by disconnecting the battery first, and then disconnecting the wire harness from the fuel pump. Luckily for demonstration purposes, we have a harness that came off the vehicle.
Do you need to remove wire from fuel pump?
You’ll need to remove about a foot of the wire harness and the conduit from the old wire harness before you start cutting. Make sure you’re dealing with the one four wire connector for the fuel pump module, and not the fuel pump’s fuel pressure sensor connector.
How is a fuel pump connected to the electrical system?
These pumps are connected to the electrical system by the fuel pump wiring harness. Over time, the wiring harness connectors may corrode or break, weakening the electrical connection.