Engine Control Module for Holley EFI Systems

Name: Engine Control Module for Holley EFI Systems
Brand: HOLLEY
SKU: 510-554-143
Price: 659.95 USD
Availability: InStock

^$659⁹⁵

Ships on 09/04/2026

Lowest Price Guarantee

Engine Control Module

Holley EFI Systems

Controls Fuel and Ignition

Direct Replacement Service ECU

This engine control module controls fuel and ignition for Holley EFI systems as a service replacement ECU.

Holley 554-143 Highlights:

Works with Holley EFI systems.
Controls fuel and ignition.
Service replacement ECU.

The Holley EFI Programmable 8 Channel Injector Driver Module. The ultimate solution for methanol burning engines that require a large set of secondary injectors. The Holley EFI Injector Driver Module will have you in complete control of your fuel injected behemoth, featuring easily programmable injector current curves, injector test fire mode, two datalogger outputs, multiple peak and hold current settings and more. This module will allow you to expand the capabilities of your current Electronic Fuel Injected Engine, keeping you at the front of the field!

Features

Engineered specifically to add a secondary set of high peak current injectors when utilizing a Holley EFI Dominator ECU
Can be triggered by either negative or positive trigger to ease install in all EFI applications, be it a stock or aftermarket ECU
Eight easily programmable channels for precise injector control
Easy to wire Tyco Super Seal Connector
Eight pre-programmed injector current curves
Peak current settings from 4A to 10A
Hold current settings from 1A to 2.5A
Peak hold duration settings from .5 to 1.0ms
Injector test fire program for quick troubleshooting while in the field
8 RGB LEDs indicate proper operation as well as log faults
Two outputs (Ground and 0-5V) can be run to an ECU to datalog any injector faults
Pre-Programmed in Position 7 for Billet Atomizer 325-800 or Precision 500 Lb/Hr Injectors