Holley
(550-905T) Holley EFI Terminator X Gen IV 4.8/5.3/6.0 GM Truck Engines & LS2/LS3
(550-905T) Holley EFI Terminator X Gen IV 4.8/5.3/6.0 GM Truck Engines & LS2/LS3
58x Crank - 4x Cam - EV6 Injectors - USB/CAN Tuning Cable
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Designed for GM LS Engines with 58x Crank, 4x Cam - and EV6 Injectors.
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Real-Time fuel map learn, takes the guess work out of tuning your base fuel table.
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High Impedance Injector Drivers will safely power most Stock LS injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)
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All of the new Terminator X systems utilize the Bosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control.
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MAP Sensor vacuum hose adapters (1/8th – ¼ and 3/16ths)
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4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
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4 Outputs – Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
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Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
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Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
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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
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Advanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!
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Includes CAN/USB tuning cable allowing you to configure your ECU and Tuning the engine in real time.
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The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDS must face up!
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Plug and play compatible with more Holley EFI accessories such as; analog style gauges, shift lights, various modules, and coming soon, 12.3" digital dash support!
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Free EFI Tuning Software for complete control of your Terminator X power plant
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Includes: 58x/4x LS Engine Main Harness - EV6 Injector Harness - Terminator X ECU - ECU Main Power Harness - Bosch LSU 4.9 Wideband Oxygen Sensor - Input/Output Harness - and assorted vacuum adapters.
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Emissions Regulations
Emissions Regulations
Some of the parts sold on our store are illegal to install on an emissions controlled vehicle. Please check with your local state / city emissions office to verify whether this item is legal for installation on your vehicle.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
1965 and older U.S. manufactured California Certified vehicles
1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign manufactured vehicles
The following vehicles are considered Emissions Controlled Vehicles:
1966 and newer U.S. manufactured California Certified vehicles
1968 and newer U.S. manufactured Federally Certified vehicles
1968 and newer Foreign manufactured vehicles
Shipping & Returns
Shipping & Returns
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