OBD2A to OBD2A + OBD1 ECU Jumper – CR-V Auto / Hondata Dual ECU Adapter

🔌 CR-V Dual ECU Jumper Harness – OBD2A to OBD2A + OBD1 | VTEC Innovations

This custom in-house adapter is built to allow dual ECU operation in 1997–2001 Honda CR-V automatic chassis. It cleanly splits your factory OBD2A ECU plug into one OBD2A output for stock automatic/dash controls and one OBD1 output for standalone/tuning ECUs like Hondata or Neptune.

No cutting or pin-swapping required — this harness lets you retain full factory functionality while seamlessly adding a programmable OBD1 ECU for tuning control.

Built with:

• OEM-spec OBD2A and OBD1 ECU connectors
• Mil-spec M22759/32 Tefzel wire
• Fully loomed with Raychem ATUM and high-temp braid
• Properly routed and sealed for drop-in install

✅ Key Features:

• Converts OBD2A chassis to support OBD2A (auto ECU) + OBD1 (tuned ECU) in parallel
• Maintains factory automatic transmission, gauges, and accessories
• Supports Hondata, Neptune, chipped OBD1 ECUs
• Clean install — plug-and-play, no permanent modifications
• Built and tested in-house using motorsport-grade materials

📦 Fitment:

• 1997–2001 Honda CR-V (OBD2A, automatic)
• Other OBD2A Honda platforms with auto + tuning needs (if pinout matches)

🔥 Ideal For:

• Auto CR-Vs needing Hondata/Neptune support
• JDM or tuned B/D-series swaps retaining stock auto ECU
• Dual ECU control without cutting or repinning
• Standalone installs with dash + trans functionality