Haltech Elite 1000 / 1500 Plug & Play Adapter Harness – 02-04 Honda K-Series | RSX / EP3

Run a Haltech Elite 1000 or 1500 on your 02-04 K-Series without touching your factory engine harness. This adapter is engineered specifically for the 02-04 ECU architecture — clean standalone conversion with proper signal routing and expansion capability built in from the start.

No splicing. No repinning. No compromises.

Platform Compatibility

• 2002–2004 Acura RSX
• 2002–2004 Honda EP3 Civic Si
• Compatible with factory K-Series engine harness
• Compatible with aftermarket tucked harnesses (no modification needed)

What's Built In

4-Pin CAN Communication

Integrated CAN power and ground wiring for seamless connection to Haltech CAN expansion modules, CAN wideband controllers, digital dashes, and additional Haltech CAN devices — pre-wired for simplified system expansion.

Honda-to-GM IAT Adapter Included

Includes a GM-style IAT adapter harness for faster response speed, improved logging accuracy, and more consistent tuning data. Faster and more stable than the OEM Honda IAT sensor.

Future-Proof Output Provision

Additional terminals included for auxiliary inputs, additional outputs, boost control, and sensor expansion — built with long-term upgrade flexibility in mind.

Construction Standard

• TXL automotive-grade wiring
• Properly terminated and labeled connections
• CarrotTopTuning branded construction
• Clean StreetSpec routing and loom finish

Installation Note

When using this adapter with a factory OEM engine harness, one locking tab on the jumper harness may require minor trimming for perfect engagement. Aftermarket tucked harnesses connect without modification.

Includes pinout overview sheet for guided installation and configuration reference.

Why VTI StreetSpec?

StreetSpec harnesses are engineered for clean OEM+ integration with structured routing and reliable standalone compatibility — without the complexity of full motorsport-spec construction. Quality and expandability without overbuilding.