{"product_id":"holley-terminator-x-service-ecu-554-152","title":"Holley Terminator X Service ECU, Universal Replacement, DBC | 554-152","description":"\u003cp\u003eThese standalone Terminator X ECUs are intended as service or replacement components for an existing Terminator X EFI installation. The Terminator X ECU delivers real-time fuel learn, high-impedance injector drivers, a built-in 1 Bar MAP sensor, and 4 programmable inputs and outputs for accessories such as electric fans, boost control solenoids, or progressive nitrous control. The Terminator X Max variant adds electronic transmission control and drive-by-wire throttle body control on top of the same core feature set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOEM injector support, with part numbers provided in the handheld wizard or software\u003c\/li\u003e\n\u003cli\u003eGenuine Bosch LSU 4.9 wideband control (not compatible with LSU 4.2 oxygen sensors)\u003c\/li\u003e\n\u003cli\u003e8 built-in multi-color diagnostic LEDs for quickly identifying issues such as a failed TPS autoset, faulty crank\/cam sensors, or oxygen sensor problems\u003c\/li\u003e\n\u003cli\u003eBuilt-in 1 Bar MAP sensor; can be disabled in favor of an external MAP sensor for boosted applications\u003c\/li\u003e\n\u003cli\u003e4 inputs — 12V, ground, 5V, and frequency — for pressure sensors, nitrous activation, or trans-brake triggers\u003c\/li\u003e\n\u003cli\u003e4 outputs — ground, PWM — for fans, boost control, nitrous control, IAC kits, and more\u003c\/li\u003e\n\u003cli\u003eBoost control: boost vs. time, gear, RPM, speed, plus boost safeties\u003c\/li\u003e\n\u003cli\u003eNitrous control: single channel wet or dry, progressive or non-progressive, rich\/lean safeties, closed-loop AFR target\u003c\/li\u003e\n\u003cli\u003eAdvanced tuning tables: 4x 1D tables, 1x 1D per-gear table, 4x 2D tables, 1x 2D per-gear table\u003c\/li\u003e\n\u003cli\u003eFree EFI tuning software for complete control of the Terminator X system\u003c\/li\u003e\n\u003cli\u003eTerminator X Max adds integrated electronic transmission control (GM 4L60E\/4L80E, Ford AODE\/4R70W)\u003c\/li\u003e\n\u003cli\u003eTerminator X Max adds integrated drive-by-wire throttle body control\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Compatible with Terminator X harnesses\u003c\/li\u003e\n\u003cli\u003eEngine\/Platform, Crank\/Cam Wheel \u0026amp; Injector Connector: Not vehicle-specific — this is a bare replacement\/service ECU, so these specs are determined by whichever Terminator X wiring harness and kit it's installed into, not by the ECU itself\u003c\/li\u003e\n\u003cli\u003eThrottle Control \u0026amp; Transmission Control: This part number is the base Terminator X service ECU (fuel and spark control only, no DBW throttle body control or transmission control); those features require pairing with a Terminator X Max harness\/kit instead\u003c\/li\u003e\n\u003cli\u003eMAP Sensor: Built-in 1 Bar (external optional for boosted applications)\u003c\/li\u003e\n\u003cli\u003eOxygen Sensor: Genuine Bosch LSU 4.9 wideband\u003c\/li\u003e\n\u003cli\u003eInputs\/Outputs: 4 programmable inputs, 4 programmable outputs\u003c\/li\u003e\n\u003cli\u003eRecommended Use: Not recommended for marine applications; suitable for off-road use with a dry, heat-protected mounting location\u003c\/li\u003e\n\u003cli\u003ePart Number: 554-152\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompliance:\u003c\/strong\u003e This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eIs this a complete Terminator X kit or just the ECU?\u003c\/h5\u003e\u003cp\u003eThis is the standalone service ECU, intended to replace or service the ECU in an existing Terminator X EFI installation.\u003c\/p\u003e\u003ch5\u003eWhat's the difference between Terminator X and Terminator X Max?\u003c\/h5\u003e\u003cp\u003eTerminator X Max adds electronic transmission control and drive-by-wire throttle body control on top of the base Terminator X feature set.\u003c\/p\u003e\u003ch5\u003eWhat oxygen sensor does this ECU use?\u003c\/h5\u003e\u003cp\u003eA genuine Bosch LSU 4.9 wideband oxygen sensor; it will not work with LSU 4.2 sensors.\u003c\/p\u003e\u003ch5\u003eCan this ECU be used in a boat?\u003c\/h5\u003e\u003cp\u003eNo, it's not recommended for marine applications, though it can be used off-road in a safe, dry, heat-protected location.\u003c\/p\u003e\u003ch5\u003eIs this legal for street use?\u003c\/h5\u003e\u003cp\u003eNo. It's legal for sale and use only on Racing Use Only vehicles — competition vehicles that are not registered and never operated on the street. It cannot legally be installed on an emissions-controlled vehicle.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is this a complete Terminator X kit or just the ECU?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This is the standalone service ECU, intended to replace or service the ECU in an existing Terminator X EFI installation.\"}},{\"@type\":\"Question\",\"name\":\"What's the difference between Terminator X and Terminator X Max?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Terminator X Max adds electronic transmission control and drive-by-wire throttle body control on top of the base Terminator X feature set.\"}},{\"@type\":\"Question\",\"name\":\"What oxygen sensor does this ECU use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A genuine Bosch LSU 4.9 wideband oxygen sensor; it will not work with LSU 4.2 sensors.\"}},{\"@type\":\"Question\",\"name\":\"Can this ECU be used in a boat?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, it's not recommended for marine applications, though it can be used off-road in a safe, dry, heat-protected location.\"}},{\"@type\":\"Question\",\"name\":\"Is this legal for street use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It's legal for sale and use only on Racing Use Only vehicles, competition vehicles that are not registered and never operated on the street. It cannot legally be installed on an emissions-controlled vehicle.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":42418600083504,"sku":"GVMR_554-152","price":913.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/554-152.jpg?v=1758386850","url":"https:\/\/berryperformancesales.com\/products\/holley-terminator-x-service-ecu-554-152","provider":"Berry Performance Sales","version":"1.0","type":"link"}