Terminator X/X MAX

Terminator X and Terminator X Max is two powertrain management systems from Holley that offer plug and play control for most LS engines. Why settle for a junkyard ECU with a cumbersome aftermarket tuning interface when you can get complete control of your engine, self-learning fuel strategies and the proven, race winning technology of Holley EFI for under a grand!


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Standalone Engine Management, at a budget price. Plug and Play with most domestic V8 Engines!
 

Terminator X and X Max Features and Benefits

  • Plug and play Domestic V8 engine control
  • Drive-by Wire Throttle Body Control (Terminator X Max Only)
  • Electronic Transmission Control GM 4L60-80 - Ford 4R70W - Chrysler 46RE (Terminator X Max Only)
  • Genuine Bosch LSU 4.9 Wideband Control (Will not work with LSU 4.2 Oxygen Sensors)
  • On-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal – Cam Signal. Allow you to identify any Critical engine issues at a glance
  • Built in 1bar MAP Sensor, vacuum hose adapters included (1/8th – ¼ and 3/16ths) - or for Boosted applications, you can disable the internal MAP sensor, and utilize an external MAP Sensor, the harness comes with the connector terminated, making the installation a snap.
  • 4 Inputs – 12v, Ground, 5v, and Frequency, for things such as 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 such as; fans, boost control, nitrous control, IAC Kit, and More
  • 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
  • Integrated Datalogging to the 3.5” Handheld SD Card
  • Free EFI Tuning Software for complete control of your Terminator X power plant
     
Terminator X/X MAX

Diagnostic LED's

  • 8 Built-in multi-color diagnostic LED's allow you to quickly identify a variety of potential system issues, such as a failed TPS Autoset - faulty crank or cam sensors, or potential oxygen sensor issues!
  • 1. ECU Power - Green = ON
  • 2. Engine Running - Green = Running - Yellow = No RPM
  • 3. Wideband Status - Blue = Too Hot, Too Cold, Slow Warmup, or Uncalibrated, Green = OK!, Red = Sensor Failure, Yellow = Sensor Heating, Off = Sensor Disabled.
  • 4. TPS Calibration - Green - Calibrated, Red = Calibration Error, Cyan = DBW Pedal Calibration Error, Purple = DBW TB Calibration Error.
  • 5. Undefined - Future Use!
  • 6. Crank Signal - Green = Tooth Detected, below crank to run RPM (400RPM), Blue = Gap Detected, below crank to run RPM (400RPM), Red = Crank Error Detected, Off - Synced Properly.
  • 7. Cam Signal - Green = Tooth Detected, below crank to run RPM (400RPM), Blue = Gap Detected, below crank to run RPM (400RPM), Red = Cam Error Detected, Off - Synced Properly.
  • 8. Undefined - Future Use!
     

How To Identify GM LS 24 or 58 Tooth Crank Sensors

  • Black crank sensors will be found on 24x (tooth) LS engines.
  • Gray crank sensors will be found on 58x (tooth) LS engines.

Proper sensor identification is critical when selecting any LS EFI system – 24x sensor operate at 12v, where as 58x sensors operate av 5v.
 

Injector Identification Chart

GM used three different injector connector styles on the LS engines:

  • Left – Bosch (EV1)
  • Center – USCAR (EV6) and
  • Right – Multec 2, which were used in early LS truck engines.
     

Terminator X ECU Connections

  • J1A – Main Harness Connector – This connector is primarily an “Input” connector. It contains all the sensor inputs and wide band oxygen sensor control.
  • J1B – Main Harness Connector – The second connector is the “J1B” connector (26 pin). This connector is the “output” connector. Is has 8 injector outputs and outputs for other devices.
  • MAP Sensor – used on N/A applications, connect directly to left manifold vacuum port on the intake manifold.
  • Main Power – Connects to the Main Power Harness. These two wires MUST be wired directly to the Battery Terminals.
      

Terminator X Max ECU Connections

  • J1A – Main Harness Connector – This connector is primarily an “input” connector. It contains all the sensor inputs and wide band oxygen sensor control.
  • J1B – Main Harness Connector – The second connector is “J1B” connector (26 pin). This connector is the “output” connector. It has 8 injector outputs and outputs for other devices.
  • MAP Sensor – used on N/A applications, connect directly to right manifold vacuum port on the intake manifold.
  • Main Power – Connects to the Main Power Harness. These two wires MUST be wired directly to the Battery Terminals.
  • J3 – Connections point for the Drive-By-Wire harness.
  • J4 – Connection point for the Transmission harness.
     

Handheld Boost Control!

  • The Terminator X system integrates boost control functionality into the handheld, allowing you to easily change timing and AFR offset without needing a Laptop!
  • For the advanced user, the Terminator X Software contains a robust boost control system, with Dome Control, Boost By Time/Gear/RPM/Speed, and built in Boost Safeties.
     

Bottle Fed Power Management

  • If nitrous oxide is your power adder of choice, the Terminator X system put nitrous control in your hands!
  • Through the handheld you have the power to set Min/Max RPM for Nitrous Activation, retard or advance timing, set Target AFR, and even build custom progressive curves for both Nitrous Percentage and Ignition Timing.
     

Terminator X EFI for LS Engines

How to use a Holley EFI 58x Harness on 24x Engines

Terminator X Live Overview and Unboxing

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