Terminator X Universal MPFI System

The Holley Terminator X MPFI Universal System (HOL 550-936) provides comprehensive engine control for domestic V8 applications, including conventional pushrod Chevrolet and Chrysler engines. This system offers a self-learning fuel strategy, ensuring optimal performance and efficiency. It features real-time fuel learning, high-impedance injector drivers capable of powering most stock and Holley EFI injectors, and an integrated 1-bar MAP sensor with included vacuum hose adapters. For boosted applications, the internal MAP sensor can be disabled to utilize an external one. This EFI system is equipped with four programmable inputs and outputs, making it versatile for accessories like electric fans, boost control solenoids, and progressive nitrous control. It includes a 3.5-inch touchscreen LCD handheld that simplifies calibration with an easy-to-use wizard, along with tuning and gauge display functions. For advanced users, Holley EFI's industry-leading software suite offers full laptop access. The system also includes a Bosch LSU 4.9 wideband oxygen sensor for accurate AFR readings and precise tuning control. Key features include plug-and-play ignition capability with Dual Sync and HyperSpark Distributors (adapter required for the latter). The Terminator X supports advanced tables, such as 4x 1D tables and 4x 2D tables (per gear options available), allowing for custom tuning strategies like flex fuel sensor offsets or custom fuel/oil pressure safeties. On-board diagnostic LEDs provide quick identification of critical engine issues, including ECU power, engine run, wideband status, TPS calibration, and crank/cam signals.