RED WOLF OBD2A to OBD1 Adapter Harness — 1996–1999 Honda/Acura Compatible, Plug-and-Play Copper Conductors

RED WOLF OBD2A to OBD1 jumper conversion harness is a plug-and-play cable that lets you connect an OBD1 ECU device to a vehicle with an OBD2A diagnostic port for compatible late‑1990s Honda and Acura models.

This compact adapter bridges the wiring differences between OBD2A vehicle harnesses and OBD1 ECUs so tuners, testers, and legacy modules can communicate with compatible 1996–1999 Hondas and Acuras without cutting factory wiring. Constructed with an ABS housing and pure copper conductors insulated in PVC, the cable prioritizes conductivity and corrosion resistance while keeping installation straightforward: the red plug mates to the car’s OBD2A diagnostic port and the gray plug mates to the OBD1 ECU connector.

Which vehicles will this RED WOLF adapter work with?

This harness is built for specific late‑1990s Honda and Acura models that used OBD2A vehicle harnesses but can accept OBD1 ECUs. It is compatible with many integras, civics, accords, and preludes within the listed year ranges; compatibility always depends on the vehicle harness and ECU being the correct OBD1/OBD2A types.

• 1996–1999 Acura Integra (OBD2A vehicle harness)
• 1996–1998 Honda Civic / Del Sol (OBD2A harness only)
• 1996–2001 Honda Prelude (selected models)
• 1996–1997 Honda Accord (OBD2A harness only)

How do you install this jumper harness in minutes?

Installation is plug-and-play with no cutting, splicing, or special tools required. The adapter’s plugs are keyed to match the OBD2A port on the car and the OBD1 ECU connector, making it simple to swap systems during diagnostics or tuning sessions.

• Plug the red connector into the vehicle’s OBD2A diagnostic port.
• Plug the gray connector into the OBD1 ECU or device input.
• Confirm tight seating and power up to verify communication before driving.

What limitations and compatibility notes should I know?

This cable converts only OBD2A vehicle harnesses to OBD1 ECU connectors. It does not work for automatic transmissions, OBD2B systems, or when the ECU/harness types don’t match the specified standards, so double‑check your vehicle and ECU specs before purchase.

• Designed for manual-transmission applications only — not for automatics.
• Only for OBD2A vehicle harnesses; OBD2B is incompatible.
• Not suitable if the target ECU is not an OBD1-spec unit.

What materials and build quality can I expect from RED WOLF?

The harness uses an ABS plastic housing for plug shells and pure copper conductors with PVC insulation, offering a balance of durability and electrical performance. The materials resist corrosion and wear commonly found in engine bay and diagnostic environments.

• ABS housing protects connectors from impact and heat.
• Pure copper wiring ensures reliable conductivity for accurate signals.
• PVC insulation helps prevent abrasion and exposure damage.

Who is this for: The RED WOLF OBD2A to OBD1 jumper harness is ideal for tuners, mechanics, and DIY enthusiasts working on late‑1990s Honda and Acura models who need to connect legacy OBD1 ECUs or diagnostic devices to vehicles equipped with OBD2A ports. If you are unsure whether your car’s harness or ECU matches the OBD2A/OBD1 specification, confirm pinouts or consult a wiring diagram before ordering to ensure compatibility.