You will need holley fuel pump relay kit pn 12 753 or equivalent 4 wire relay. We have one goal to provide you a one stop solution for all of your wiring components needs.
32 Holley Hp Efi Wiring Diagram Wiring Diagram List
Holley power tap wiring diagram. Each holley efi connector that has 0 5v inputs has its own 5 volt reference voltage output and sensor ground. Black nylon braided wire loom from 18 to 2 and every connector pinssealstpa included we utilize on our main harnesses are now. Wiring the fuel pump with a relay. Disconnect the cables from the battery. Introducing the holley efi wiring shop. From connectors and pins to wire loom and tools.
Whether youre building a harness from scratch replacing an old connector or installing a new sensor holleys wiring shop has the tools and equipment you need. Before punching or drilling a hole in the firewall make sure you know what is on the other side. Holley performance products has written this manual for the installation of the pro jection 4d and 4di fuel injection system. This manual contains information and diagrams related to wiring most holley efi products including ecus ignition systems nitrous systems watermethanol injection systems sensors and more. Please read all the warnings notes and tips as they contain valuable information that can save you time and money. All 0 5v sensors require a 5 volt reference voltage and a sensor ground.
3 11 important wiring dos and donts. We have everything you need to build or service your holley efi powered machine. These need to be properly wired to each 0 5v sensor used. Wire the signal output wire from a 0 5v sensor to the appropriate pin using the holley wiring diagram. Featuring items from multiple holley brands the wiring shop is your one stop place for everything needed to work on your aftermarket fuel injection or high performance ignition system. Mount relay on firewall of engine compartment using a sheet metal screw.
This manual contains all the information needed to install this system.

















