Holley Fuel Pump Relay Wiring Diagram
Variety of electric fuel pump relay wiring diagram.
Holley fuel pump relay wiring diagram. So use a larger gauge wire for lower voltage drop. The diagram is color coded per circuit and only a few things may need to be said. With b12 connected and the fan on the fuel pump. This holley kit is intended primarily for those applications running an electric pump.
Holley fuel pump relay wiring diagram. Fuel pump wiring for the red circuit is generally going to carry a much higher current than the relay. The long wire runs in these kinds of installations can sometimes result in a voltage drop at the electric pump. You will need holley fuel pump relay kit pn 12 753 or equivalent 4 wire relay.
Hello folks ive already wired my holley electric fuel pump as shown in the wiring diagram attached. But i get no power from green wire to turn on fuel pump. Connect the fuel pump red lead to a 12 volt ignition source. With b12 connected and the fan on i was getting about 8v out of a2 green wire enough to trigger the fuel pump relay.
08092018 08092018 2 comments on holley fuel pump relay wiring diagram. I then connected the main power harness to the ecu. A2 fuel pump out 12v 10a max b2 iac a hi. Installation of this kit is good insurance that the fuel pump will be receiving full voltage from the battery.
Checked fuel pump by disconnecting this wire from ecu and adding power fuel pump runs. When i disconnected b12 to the io harness the fuel pump stopped engaging with the fan. Relay kit 30amp minimum holley pn or equivalent the best location for mounting any electric fuel pump is the rear of the vehicle. So i went back and did a few checks.
Blow the cover and body dry with compressed air and reassemble following the diagram. Basic safe electric fuel pump wiring diagram this is the basic wiring diagram for safe electric fuel pump wiring. If current levels exceed these use the appropriate relay or solenoid drivers. This manual contains information and diagrams related to wiring most holley efi products including ecus ignition systems.
I run a holley black pump right off my battery through a fused 15 amp switch for fire protection the fuel pump should be wired through an oil pressure switch to kill the pump. It shows the elements of the circuit as streamlined shapes and the power as well as signal links in between the gadgets. The green loose wire is attached to the fuel pump relay 12v power controlling side of relay. Turn key on and shouldnt the fuel pump come on when the ignition is first turned on.
In this line add an in line fuse holder and a 75 amp fuse. Figure 2 wiring the fuel pump with a relay. To complete the installation connect the ground black lead to the battery. Do not use improper crimping tools.
Spade 87 red fuel pump wire spade 85 ground spade 30 to battery with 15a inline fuse spade 86 to toggle switch in car.
Gallery of Holley Fuel Pump Relay Wiring Diagram
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