Engine Management Systems, Nexus S2, ECU Only, Each
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Estimated Ship Date: Dec 22, 2026 Would you rather pick it up?
Overview
Haltech Nexus S2 ECUs
Haltech Nexus S2 ECU is the successor to the acclaimed Elite 1500, offering a serious upgrade in performance and functionality. The S2 engine control units combine all the classic functionality of the Elite 1500 with new features and the superior processing power of the successful Nexus platform.
Haltech Nexus S2 ECUs suit engines with up to four cylinders or up to two rotors, as well as racing applications where advanced race features and data logging is required. Kits include Nexus S2 ECU, mounting bolts, USB-C cable and dust cap, Quick Start Guide and wiring diagram.
Inputs/outputs:
* 4 Peak/hold injector drivers (can be used as low side drive outputs)
* 4 Low current ignition outputs (can be used as low side drive outputs)
* 6 Low side drive outputs, PWM capable (DPOs)
* 4 Push-pull / half bridge outputs (8A, PWM capable), e.g. for electronic throttle
* 1 ECR output
* 11 0 to 5V analog inputs with redundancy for electronic throttle and switchable 5V pullup
* Trigger and home inputs with differential inputs, adjustable thresholds and glitch filters
* 6 Synchronous pulsed inputs, zero crossing or adjustable thresholds - cam sensor inputs, frequency inputs or 0-5V analog inputs
* 1 On-board wideband controller, supporting NTK and LSU4.9
* 1 On-board 4-bar MAP sensor
* 2 CAN ports with switchable termination
Applications
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Some parts are not legal for use in California or other states with similar laws / regulations
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