Do you need a relay for electric fuel pump?
Do you need a relay for electric fuel pump?
A relay would be needed if you want to turn it off with low oil preasure or something like that. Double check with AAW and see if there pump circuit is battery power or ignition power. If it is battery power, you will still need a relay to turn on with the ignition.
What gauge wire should I use for a fuel pump?
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.
What size wire for LS swap fuel pump?
All fuel pumps require at least a 12-gauge power wire.
What is the best fuel pump for LS swap?
Many builders suggest the Walbro 340 in-tank pump because it holds higher pressures and has proven to be very reliable for supplying LS engines. The key is to buy a pump that is suited for your application. The stock F-Body fuel-pump assembly can be purchased from GM dealers and used for retrofit applications.
How do you Prime electric fuel pump?
Pump fuel through the fuel line via the manual pump to prime a fuel system. Open the hood of the vehicle and locate the fuel pump; it is usually found between the fuel tank and the first fuel filter. Locate the manual primer on the pump. The manual primer can take the form of a lever or a plunger.
How to install a fuel pump relay?
1) Install relay. Install the relay into the fuse box the same way the old relay was removed. 2) Put on the fuse box cover. Snap it into place. Note: If you had to remove screws or bolts from the cover, be sure to install them. 3) Remove the fuel cap from the fuel tank. Put the fuel cap back on and make sure that it makes a good seal.
What does an electric fuel pump relay do?
The fuel pump relay is what turns on the fuel pump when you start your car and powers it down when you shut off the ignition. The engine control module (ECM) uses the fuel pump relay to control when the fuel pump is on. The fuel pump relay supplies electricity to power up and power down the fuel pump.
Where is the fuel pump relay switch located?
It is often found in the fuse box located in the engine bay and functions as the primary electronic switch that controls power to the fuel pump. The fuel pump relay is usually controlled by the ignition or Powertrain Control Module , and when switched on, will provide current to the fuel pump so that it may function.
