Download Holley Terminator X Software 2.0 and Unlock Your ECU's Full Potential
Holley Terminator X Software 2.0 Download: A Guide for LS Enthusiasts
If you are looking for a simple, effective, and affordable way to control your LS engine swap or build, you might want to check out the Holley Terminator X EFI system. This system allows you to plug and play with most domestic V8 engines, including common LS-based engines such as 4.8, 5.3, or 6.0 truck engines. It also offers full tunability of fuel maps, timing tables, idle control, drive by wire, transmission control, boost control, nitrous control, and much more.
holley terminator x software 2.0 download
In this article, we will show you how to download and install the latest version of the Holley Terminator X software 2.0, which includes new features and updates such as 6L80/90E transmission control, LT4 engine harness support, T56 and TKX/TKO manual transmission support, traction control, pin map test mode, and more. We will also show you how to use the software to get your engine running smoothly and efficiently.
What is Holley Terminator X and why you need it
Holley Terminator X is a standalone engine management system that replaces the factory ECU on your LS engine. It comes with a controller and a simplified wiring harness that plugs into the LS engine's standard group of sensors. It also comes with a 3.5-inch color LCD touchscreen handheld device that allows you to make adjustments and check on the health of your engine with multiple gauge configurations.
Holley Terminator X features and benefits
Some of the features and benefits of the Holley Terminator X system are:
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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 oxygen sensor control
On-board diagnostic LEDs for easy troubleshooting
Built-in 1-bar MAP sensor (or external MAP sensor support for boosted applications)
4 programmable inputs and outputs for accessories such as fans, solenoids, nitrous, etc.
Boost control with various modes and safeties
Nitrous control with various modes and safeties
Advanced tables for custom sensors, traction control, etc.
Integrated data logging to the handheld SD card
Free EFI tuning software for complete control of your Terminator X power plant
Holley Terminator X vs GM standalone ECU for LS swaps
If you are wondering how the Holley Terminator X compares to the GM standalone ECU for LS swaps, here are some reasons why you might prefer the Holley system:
The Holley system is more affordable than the GM system
The Holley system is easier to install than the GM system
The Holley system offers more features and tunability than the GM system
The Holley system has better customer support and online resources than the GM system
How to download and install Holley Terminator X software 2.0
If you already have a Holley Terminator X or Terminator X Max system installed on your vehicle, you can download and install the latest version of the software 2.0 for free from the Holley website. Here are the requirements and steps to do so Requirements and compatibility
To download and install the Holley Terminator X software 2.0, you will need the following:
A Windows PC or laptop with an internet connection
A USB to CAN cable (part number 558-443) to connect your PC to the Terminator X ECU
A micro SD card reader to update the handheld device
A compatible Terminator X or Terminator X Max system installed on your vehicle
The Holley Terminator X software 2.0 is compatible with the following Terminator X and Terminator X Max systems:
Terminator X Systems
Terminator X Max Systems
550-903 - LS1/LS6 Engines with EV1 Injectors and 24x Crank Reluctor
550-916 - LS1/LS6 Engines with EV1 Injectors and 24x Crank Reluctor - with Trans Control
550-904 - LS2/LS3 Engines with EV6 Injectors and 58x Crank Reluctor
550-917 - LS2/LS3 Engines with EV6 Injectors and 58x Crank Reluctor - with Trans Control
550-905 - LS Truck Engines with EV1 Injectors and 24x Crank Reluctor
550-918 - LS Truck Engines with EV1 Injectors and 24x Crank Reluctor - with Trans Control
550-906 - LS Truck Engines with EV6 Injectors and 58x Crank Reluctor
550-919 - LS Truck Engines with EV6 Injectors and 58x Crank Reluctor - with Trans Control
550-907 - Ford Modular 2V Engines (4.6L / 5.4L)
550-920 - Ford Modular 2V Engines (4.6L / 5.4L) - with Trans Control
550-908 - Ford Modular 4V Engines (4.6L / 5.4L)
550-921 - Ford Modular 4V Engines (4.6L / 5.4L) - with Trans Control
550-909 - Ford Coyote Ti-VCT Engines (2011-2017)
550-922 - Ford Coyote Ti-VCT Engines (2011-2017) - with Trans Control
550-910 - Ford Coyote Ti-VCT Engines (2018+)
550-923 - Ford Coyote Ti-VCT Engines (2018+) - with Trans Control
550-924 - GM Gen V LT1/LT4/L83/L86 (2014+) Direct Injection Engine Control Kit with Trans Control
Steps to download and install
To download and install the Holley Terminator X software 2.0, follow these steps:
Go to the and click on the "Download" button for the Terminator X software 2.0.
Save the file to your PC and run it as an administrator.
Follow the instructions on the screen to complete the installation.
Connect your USB to CAN cable from your PC to the Terminator X ECU.
Open the Holley EFI software and select "ECU Firmware Update" from the "Tools" menu.
Select your Terminator X system from the list and click on "Update Firmware".
Wait for the firmware update to finish and disconnect the cable.
Remove the micro SD card from your handheld device and insert it into your PC using a card reader.
Copy the "Holley" folder from the software installation directory (usually C:\Program Files (x86)\Holley\Holley EFI) to the root of your micro SD card, replacing any existing files.
Eject the micro SD card from your PC and insert it back into your handheld device.
Turn on your handheld device and wait for it to boot up.
Congratulations, you have successfully downloaded and installed the Holley Terminator X software 2.0 on your system.
How to update your Terminator X firmware
If you already have the Holley Terminator X software 2.0 installed on your PC, you can check for firmware updates periodically by following these steps: