After much anticipation, they're finally here! These systems are built to order, with a lead time of 3-5 weeks. Please make note of lead time, or contact us with any questions before ordering. Thank you!
If you're looking to take your 4th gen Camaro or Trans Am street car to the next level with a Haltech ecu, we have your solution. This is a 100% plug-and-play harness system that replaces the factory engine harness entirely. It puts the Haltech ecu in full control of the engine and transmission, while retaining the factory PCM to keep the factory gauge cluster functional, and also preserving auxiliary I/O by controlling air conditioning, fans and other peripheral body functions.
- Intended for mild to moderate street cars that have hit limitations of a stock PCM.
- Available for Haltech Rebel LS and NEXUS series ecu's (Elite ecu version available upon request)
- Available for both LS and LT cars
- Seamlessly plug-and-play with all factory body connections
- Retains full use of factory fuse relay centers
- Terminated alternator lead built-in
- Plug-and-play to keep factory gauge cluster functional*
- Factory traction control switch pinned to an input for custom function (as applicable for model year).
- CAN bus connection fed inside cabin with gauge connections
Piggybacking Stock PCM
- The stock gauge cluster on 99-02 cars will NOT function without piggybacking a factory PCM.
- The stock gauge cluster on 93-98 cars can be made to function without piggybacking a factory PCM, but will require sacrificing some I/O from the Haltech ECU.
- The harness is structured to keep the factory PCM in stock location, in the RH rear corner of engine bay.
- Factory PCM is left in control of mundane factory functions:
- Radiator fans
- Factory A/C control
- Haltech ECU is in full control of fuel, spark & automatic transmission controls (as applicable).
- HPTuners / EFI Live license required to disable all applicable codes for functions no longer pinned into factory PCM.
- Piggybacking the stock PCM is NOT intended for keeping a car emissions compliant, and WILL NOT keep a car emissions compliant in states that require smog testing.
Transmission Control
- For 4L60e or 4L80e control, a Haltech Ti4L transmission controller kit will be required (sold separately).
- We are a Haltech dealer and can gladly provide the Ti4L kit as a bundle!
- This harness system features the same standardized transmission expansion connection as standard Rebel LS harnesses for seamless compatibility.
Inputs / Outputs
- The harness features standardized "stub" connectors at the RH rear corner of the engine bay, pinned with the following for easy access and wiring:
- Aux inputs / AVI's & SPI's
- Aux outputs / DPO's
- Sensor 5v reference
- Sensor ground
- Low current fused 12v
- Chassis ground
- Auxiliary I/O on the aftermarket ECU are used for functions such as auxiliary sensors and race functions:
- Boost control
- Nitrous control
- Flex fuel
- Trans brake / 2 step
- Auxiliary pressure & temperature sensors
- Auxiliary I/O can be used for fan control, A/C control, etc rather than opting to piggyback a stock PCM, but options and ability for other functions may then be limited.