Holley 554-165 Features:

• The ideal solution for anyone needing to upgrade their Holley EFI ECU with more functionality or data channels
• Includes a pre-terminated CAN harness, making installation for any new or existing Holley EFI installation
• Adjustable broadcast rates for each channel from 0-100 Hz

Input Examples:

• 12v Toggle Switches such as external mechanical relays or digital switches
• Ground input for a brake pedal switch
• 5v Analog inputs for fuel pressure, oil pressure, or nitrous bottle pressure sensors
• Thermistor inputs for coolant temperature sensors

Output Examples:

• PWM (pulse width modulation) Electronic fan control
• PWM (pulse width modulation) Fuel pump control
• Other PWM (pulse width modulation) controlled devices

Notes:

• HP/Dominator Requires V6 Software version Build 200 and higher. Terminator X requires V2 Software Build 51 and higher.
• Supports user-configured inputs and outputs from the Inputs/Outputs Individual Configuration File.
• Inputs and outputs from other ICF's (such as the boost/nitrous, or timing ICF) need to be mapped to pins on the ECU.

Emissions Note:

This part is legal for sale or uses on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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