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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)
  • Transmission Control (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

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!

Troubleshooting at a Glance!

How To Identify GM LS 24 or 58 Tooth Crank Sensors

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

Need Help Identifying your Injectors?

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. It 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 the “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 - Connection 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.

Boost Control at your Fingers Tips

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.

Nitrous Control made easy!

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Injector Connector
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  • Terminator X GEN III HEMI Kit
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  • Terminator X Universal MPFI Kit
  • Throttle Body
  • Transmission Harness
  • USB Data - Communication Cable
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Crank Reluctor
  • 24x
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Terminator LS Options
  • Fuel, Spark
  • Fuel, Spark, Drive-by-Wire
  • Fuel, Spark, Drive-by-Wire, Transmission
  • Fuel, Spark, Transmission
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    Compare The Facts

    Hardware HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    Connectors 2 2 6 4 -
    Injector Drivers 8 8 12 8 8
    Low Impedance Injector Drivers YES NO YES NO NO
    Communication via USB Port YES NO YES NO NO
    Communication via CAN adapter NO YES NO YES YES
    Diagnostic LEDs NO YES NO YES NO
    Knock Sensors 2 2 2 2 -
    Enclosure Aluminum Composite Aluminum Composite -
    Potted YES NO YES NO YES
    Data Logging HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    Internal & External External Only Internal & External External Only External Only
    MAP Sensor HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    External Only Internal 1 BAR, or External External Only Internal 1 BAR, or External Internal 2.5 BAR
    Wideband Sensors HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    1 1 2 1 1
    Bosch 4.2 YES NO YES NO NO
    NTK YES NO YES NO NO
    Bosch 4.9 NO YES NO YES YES
    Total Inputs (+12v, Gnd, 5v, Freq) HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    4 4 50 4 Varies
    +12v Yes Yes Yes Yes No
    Ground Yes Yes Yes Yes 2
    +5v Sensor Yes Yes Yes Yes 3* - SS Only
    Frequency Yes Yes Yes Yes NO
    Thermistor Yes NO Yes NO NO
    +20v Yes NO Yes NO NO
    Digital Speed NO NO Yes NO NO
    Customizable Software Inputs 80 20 80 20 NO
    A/C Shutdown Yes Yes Yes Yes NO
    Total Outputs (Gnd, PWM-) HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    4 4 36 4 Varies
    +12v Yes NO Yes NO No
    PWM+ Yes NO Yes NO No
    Ground Yes Yes Yes Yes YES
    PWM- Yes Yes Yes Yes YES
    Customizable Software Outputs 62 20 62 20 NO
    Dual Fans Yes Yes Yes Yes YES
    Secondary Fuel Pump Yes Yes Yes Yes YES
    IAC Kick Yes Yes Yes Yes YES
    Non-Electronic Trans TCC Control Yes Yes Yes Yes NO
    Load Sensing HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    VE YES YES YES YES YES
    Speed Density YES YES YES YES YES
    Alpha-N YES YES YES YES NO
    Combo YES YES YES YES NO
    Boost Control HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    MAP and Dome Control YES NO YES NO NO
    Dome Control YES YES YES YES YES
    Boost vs Time YES YES YES YES YES
    Boost vs RPM YES YES YES YES YES
    Boost vs Speed YES YES YES YES NO
    Boost vs Gear YES YES YES YES NO
    Boost Builder YES NO YES NO NO
    Boost Safeties YES YES YES YES YES
    Nitrous Stages HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    Wet Non-Progressive 8 1 8 1 1
    Wet Progressive 8 1 8 1 1
    Dry Non Progressive 8 1 8 1 1
    Dry Progressive 8 1 8 1 1
    GPOs 8 1 8 1 NO
    Rich/Lean Safeties YES YES YES YES YES
    Closed Loop to New Target YES YES YES YES YES
    Advanced Input Strategies YES NO YES NO NO
    Advanced Tables HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    1D 8 4 8 4 4
    1D Per Gear 8 1 8 1 NO
    2D 8 4 8 4 2
    2D Per Gear 8 1 8 1 NO
    Traction Control HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    YES NO YES NO NO
    Water/Meth HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    YES NO YES NO NO
    Staging Assist HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    YES YES YES YES NO
    Drive By Wire HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    Single Throttle Body NO NO YES YES NO
    Dual Throttle Body NO NO YES NO NO
    Transmission Control HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    GM 4L60/4L70/4L80 NO NO YES YES NO
    Ford AODE/4R70W NO NO YES YES NO
    Accessories HP TERMINATOR X DOMINATOR TERMINATOR X MAX SNIPER TBI
    7" Digital Dash YES YES YES YES YES
    Pro-Dash YES YES YES YES YES
    CAN Modules (VVT, etc) YES YES YES YES NO
    Analog Gauges YES YES YES YES YES

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    Terminator X

    Terminator X and Terminator X Max. Two powertrain management systems from Holley that offer plug and play control for most domestic V8 engines starting at just $999. Why settle for a junkyard or factory 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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