Holley EFI 554-166 - EFI Input/Output Module Kit

Holley EFI 554-166 - EFI Input/Output Module Kit

Holley EFI CAN Input/Output Module - Without Harness

Holley EFI Input/Output Module Kit; Expansion CAN W/O Harness;

The Holley EFI CAN Input/Output Module can be added to Holley EFI HP, Dominator, Terminator X and Terminator X Max EFI installations. This CAN module will add (8) inputs and (8) outputs to the system which can be used to control additional accessories or provide critical sensor inputs. This module is perfect for anyone wanting to enhance the capabilities of their current ECU and have already tapped out their ECU's Input/Output channels. Please refer to 554-165 for full kit.

• 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
• Expand Dominator ECU’s Input / Output control with (8) additional inputs and outputs
• 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