Haltech Elite 550 Universal ECU w/Plug & Pin Set

Part Type

Multi-Purpose Electrical Connector Kit

Vehicle Compatibility and Return Conditions.

This item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location.

Some electronic tuning devices and programmers require activation, registration, or pairing with a specific vehicle’s VIN (Vehicle Identification Number). Once activated or paired, these devices may become permanently associated with that vehicle, restricting or preventing their use on another vehicle, resticting our ability to offer returns or exchanges.

Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order or tuning products unless the unit is deemed faulty.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information

Elite 550 + Plug and Pin Set

Haltech's Elite 550 (with plug and pin set) is a simple yet powerful ECU ideal for basic 4- to 8-cylinder or 1-2-rotor engine applications. Suitable for either naturally aspirated or forced induction engines, the Elite 550 gives you full control over fuel delivery, ignition timing and boost levels. This robust, competitively priced ECU features an environmentally sealed, waterproof case, four fuel and four ignition channels, and a 4 BAR internal MAP sensor. The Elite 550 ECU is now paired with the new Nexus Software Programmer (NSP) that brings levels of functionality and user-friendliness never seen before in an engine control package. Together they offer true cutting-edge technology to tuners and performance enthusiasts worldwide.

Additional details:
• Plug and Pins: AMP 34 Pin 4 Row 3 Key Superseal
• Load sensing by Throttle Position (TPS), Manifold Absolute Pressure (MAP), or Mass Air Flow (MAF)
• Sequential, semi-sequential, batch or multipoint injection patterns
• Ignition modes include direct fire multi-coil, distributor ignition, or Haltech CDI systems
• Connect to a wide range of dashes, displays, and expansion devices via CAN
• Waterproof case (IP67) with USB cover fitted
• 34 position AMP connector
• 4 x fuel injection outputs (peak and hold (0-8 amps peak / 0-2 amps hold)
• 4 x ignition outputs
• 2 x dedicated engine position inputs with extensive trigger type support
• 1 x digital pulsed input
• 5 x digital pulsed outputs
• 1 x analog voltage input
• 3 x dedicated inputs (Throttle Position, Coolant Temperature, and Air Temperature)
• Internal 4 Bar MAP sensor measuring up to 300kPa/3Bar/45psi of boost pressure
• Up to 33 channels of input and output (I/O) expansion (via CAN)
• USB laptop communication (Windows)
• Now using the new NSP calibration software

--- ECU FUNCTIONS:
• Oxygen control: Closed loop with long-term learning for precise tuning (with optional external CAN O2 wideband controller kit)
• Boost control: Closed loop with learning with flexible user-definable axis and six fully user-definable corrections modes (for example, boost by gear, road speed etc.)
• Flex fuel function (direct sensor input): Tune your engine's boost, fuel and ignition by ethanol content
• Low impedance injector control with programmable injector peak and hold currents
• Closed loop idle speed control: requires 1 or 2 user-defined outputs (BAC type)
• On-board and laptop data logging: Data log all available channels directly to your laptop's hard drive for both tuning and diagnostics
• CAN Bus communication for Haltech dashes and expansion devices or OBDII (view live engine data and set and clear diagnostic trouble codes)
• 2 injection stages for use with rotary engines
• ECU comes fully enabled, with no additional charges for advanced features

--- ADVANCED TUNING:
• Tuning table resolution up to 32 x 16
• Limitless tuning flexibility: Tune your engine by a combination of 3-D tuning tables combined with 3-D per cylinder compensations and multiple user-definable corrections
• Tune by a combination of manifold pressure, throttle position, cam position, ethanol content, gear, road speed, race time, EGT, shock travel, ride height, or any channel for ultimate flexibility. Dual mapping is a thing of the past.
• Per cylinder tuning correction – 3-D
• Wideband O2: Connect up to 3 channels via CAN expansion devices
• Thermocouples / EGT (Exhaust Gas Temperature): Connect up to 12 channels via external CAN expansion devices
• Variable cam control: Independently control up to 2 camshafts. Requires a minimum of one user-defined input and output per variable cam