
554-153 Terminator X Max Replacement ECU
Holley 554-153 Terminator X Max Replacement ECU Features:
- OEM (Original Equipment Manufacturer) Injectors supported, with part numbers provided in the handheld wizard or software
- Genuine Bosch LSU 4.9 Wideband Control (Not compatible with LSU 4.2 Oxygen Sensors)
- 8 Built-in multi-color diagnostic LED's for quick identification of potential system issues, such as failed TPS (Throttle Position Sensor) Autoset, faulty crank or cam sensors, or potential oxygen sensor issues
- Built-in 1bar MAP (Manifold Air Pressure) sensor. On boosted applications, you can disable the internal MAP sensor and utilize an external MAP sensor
- 4 Inputs – 12v, Ground, 5v, and Frequency for additional pressure sensors, or activation triggers for nitrous activation, or a trans brake (Fuel and Oil Pressure Inputs are pre-terminated)
- 4 Outputs – Ground, PWM - for accessories like fans, boost control, nitrous control, IAC Kit, and more
- GM LS and LT, Ford Coyote, and Mopar Gen V Drive-by-Wire Throttle Body Control (Terminator X Max Only)
- GM 4L60 and 4L80, and Ford 4R70W Transmission Control (Terminator X Max Only)
- Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
- Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
- Advanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table
- Free EFI Tuning Software for complete control of your Terminator X power plant
- Compatible with GM LS and LT, Ford Coyote, and Mopar Gen V drive-by-wire throttle bodies
- Compatible with GM 4L60/4L80, and Ford 4R70W transmissions
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Standalone Engine Management Systems
Holley EFI has delivered the Terminator X and Terminator X Max standalone engine management systems (EMS) for swappers to take full control of their fuel-injected or multi-point fuel injected (MPFI) engines. Terminator X systems design is a simple plug-and-play unit incorporating self-learning technologies without needing any tuning interfaces, which is often required when using a factory power-train control module (PCM). Terminator X kits offer engine control, while Terminator X Max kits offer both engine and transmission control. Power adders such as nitrous and boost can easily be handled with custom settings and features, making these Terminator X kits ideal street and strip ECMs.


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