Plug-and-Play Installation
OEM-Style Connectors
For OBD2 Vehicles Using OBD1 Distributors
Optimized Lead Lengths for Clean Install

Description
Vehicle Fitment
Technical Data
Included

SpeedFactory OBD2 Vehicle-Side to OBD1 Distributor Jumper Harness (SFR-01-045)

Installing an OBD1 distributor in your OBD2 Civic or Integra? This harness eliminates the wiring headache entirely. Instead of cutting your OEM connectors or splicing wires, you plug this jumper in between your OBD2 vehicle harness and your OBD1 distributor - done in minutes, no tools required.

This is the correct harness for 10-pin OBD2 vehicle-side connectors only. If your Civic is a 1999-2000 CX, DX, EX, or HX, your car has an 8-pin harness and this part will not fit. See the fitment section below before ordering.

Is This the Right Harness for Your Build?

There are two common OBD2 Honda distributor connector configurations, and mixing them up is the #1 pre-purchase mistake. Here is how to confirm you need this one:
- You need this harness if: Your vehicle has a 10-pin OBD2 distributor connector and you are installing an OBD1 distributor.
- OBD2A vs. OBD2B: OBD2A covers 1996-1997 model years. OBD2B covers 1998-2000. Both use the 10-pin connector on the vehicle side (where compatible), and this harness works for both - as long as your specific trim uses the 10-pin plug.
- You do NOT need this harness if: You are swapping ECUs only, or if your vehicle already has an OBD1 distributor installed.
- Pair it right: If you are doing a full OBD2-to-OBD1 conversion, you will also need a separate ECU jumper harness - either the OBD2A to OBD1 ECU harness or the OBD2B to OBD1 ECU harness, depending on your year.
Exact Fitment

This harness fits the following vehicles when the vehicle side has a 10-pin OBD2 distributor connector:
- Honda Civic - all trims: 1996-1998
- Honda Civic Si only: 1999-2000
- Acura Integra - all trims: 1996-2001
- Honda Accord: 1996-1997
- Honda Civic del Sol: 1996-1997
- Honda Prelude: 1996-2000
Not compatible with 1999-2000 Honda Civic CX, DX, EX, or HX - those trims use an 8-pin vehicle-side connector and require a different harness.

What You Get vs. Cutting OEM Wiring

Cutting your OEM distributor connector to retrofit an OBD1 unit is the common DIY approach. The problems: pin damage is easy, wire length is often too short to make clean connections, and you lose the ability to return to stock. This harness eliminates 2+ hours of rewiring work and keeps your OEM harness intact and untouched.

Why SpeedFactory Over a Generic Alternative?

The cheap OBD2-to-OBD1 distributor jumpers on Amazon and generic sites use stamped pins that do not fully seat in OE-style housings - leading to intermittent signal loss and ignition timing issues under vibration. SpeedFactory uses OEM-specification pin construction on all connectors, matched to the same terminal standards as your factory Honda harness. The difference shows up on a long drive or at the track, not in a product photo.

Key Features
- Adapts 10-pin OBD2 vehicle-side distributor connector to OBD1 distributor plug
- Plug-and-play - no cutting, soldering, or pin modification required
- OEM-specification pin construction on all connectors
- Automotive-grade wiring meets or exceeds OEM wire spec
- Keeps your factory OBD2 harness completely intact
- Compatible with 10-pin OBD2 vehicle-side plugs only
- 1996-1998 Honda Civic (all trims) - 10-pin OBD2 connector
- 1999-2000 Honda Civic Si only - 10-pin OBD2 connector
- 1996-2001 Acura Integra (all trims) - 10-pin OBD2 connector
- 1996-1997 Honda Accord - 10-pin OBD2 connector
- 1996-1997 Honda Civic del Sol - 10-pin OBD2 connector
- 1996-2000 Honda Prelude - 10-pin OBD2 connector
Important: This harness is compatible with 10-pin OBD2 vehicle-side distributor connectors only. 1999-2000 Honda Civic CX, DX, EX, and HX use an 8-pin connector and are NOT compatible with this harness.
Technical Specifications
- Part Number: SFR-01-045
- Vehicle-Side Connector: 10-pin OBD2 distributor plug (Honda/Acura OE-style housing)
- Distributor-Side Connector: OBD1 distributor plug (Honda/Acura OE-style housing)
- Pin Construction: OEM-specification terminals - fully seated, crimp-style
- Wiring: Automotive-grade, meets or exceeds Honda OEM wire specification
- Installation Type: Plug-and-play - no cutting, soldering, or pin modification
- OBD Compatibility: OBD2A (1996-1997) and OBD2B (1998-2000) vehicle-side, 10-pin only
Note: Wire gauge and exact harness length specifications - please confirm with SpeedFactory directly or measure a physical unit if listing these values publicly.
- (1) SpeedFactory OBD2 Vehicle-Side to OBD1 Distributor Jumper Harness (SFR-01-045)

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