Features:

• This module is perfect for anyone wanting their Holley EFI ECU to control more functions or monitor more data channels
• HP and Terminator X EFI installations with only 4 inputs and 4 outputs can now add more functionality to their EFI system!
• Quickly expand Dominator ECU’s Input / Output control with 8 additional inputs and outputs
• The 554-165 kits contain a pre-terminated CAN Harness, allowing you to quickly install the Holley EFI CAN Module to any existing Holley EFI installation.
• Inputs can be used for things such as:
• -Switch 12v Toggle Switches - can be configured for external mechanical relays, or setup as digital switches via a Holley EFI dash
• -Ground input for brake pedal switch
• -5v analog inputs for sensors like fuel pressure, oil pressure, or nitrous bottle pressure
• -Thermistor inputs for Coolant temperature sensors
• Outputs can be used for things such as:
• -Switch Low (Ground) – For relay control or activation
• -Switch Low PWM (Ground) – PWM Fan control – PWM Fuel Pump control - or other PWM- controlled devices.