PRODUCT DETAILS
SpeedFactory OBD0 MPFI to OBD1 Distributor Jumper Harness (SFR-01-046)
If you're swapping an OBD1 distributor into your 1988-1991 OBD0 MPFI Honda Civic or CRX, this is the harness you need to make it work without cutting a single wire. The SpeedFactory SFR-01-046 OBD0 MPFI to OBD1 Distributor Jumper Harness bridges the connector mismatch between your OBD0 vehicle harness and an OBD1 distributor - cleanly, reliably, and without permanent modifications to your car.
OBD0 MPFI vehicles (1988-1991 Civic and CRX) use a different distributor connector pinout than OBD1 distributors. Without a proper jumper harness, you're looking at splicing and rewiring that can introduce electrical gremlins and make your build harder to diagnose down the road. SpeedFactory engineered this harness to eliminate that problem entirely.
What Makes This Harness Work
SpeedFactory built this harness using OEM-style pin connections on every plug, so the fitment is solid and the connection is secure. The wiring meets or exceeds OEM specifications, and the lead lengths are sized specifically for this application so you're not stuffing excess wire into your engine bay or running short. Installation is plug-and-play - one end connects to your OBD0 MPFI vehicle harness, the other end connects to your OBD1 distributor. No cutting, no soldering, no splicing required.
Compatibility
This harness is designed specifically for OBD0 MPFI Honda and Acura vehicles running D-series or B-series MPFI engines (chassis codes EF and DA) that are being fitted with an OBD1 distributor. Confirmed fitment includes:
- 1988-1991 Honda Civic (EF chassis) - all MPFI trims
- 1988-1991 Honda CRX (EF chassis) - all MPFI trims
- Compatible with D-series MPFI and B-series MPFI applications on OBD0 vehicles
This harness is for MPFI (Multi-Point Fuel Injection) vehicles only. It is not compatible with carbureted or DPFI (Dual-Point Fuel Injection) OBD0 applications.
Installation Notes
Plug this harness in-line between your OBD0 vehicle harness and your OBD1 distributor. No cutting or modification to your existing wiring is required. For a complete OBD0-to-OBD1 conversion, pair this distributor jumper harness with the SpeedFactory OBD0 MPFI to OBD1 Conversion Harness - using both together gives you a full, clean conversion with no loose ends.
Key Features
- Bridges OBD0 MPFI vehicle harness to OBD1 distributor connector
- Plug-and-play installation - no cutting, soldering, or splicing required
- OEM-style pin connections for a secure, rattle-free fit
- Automotive-grade wiring meets or exceeds OEM specifications
- Lead lengths optimized for EF chassis engine bay routing
- Reversible - no permanent modifications to your vehicle harness
- SKU: SFR-01-046
Compatible Vehicles (OBD0 MPFI only):
- 1988-1991 Honda Civic (EF chassis) - MPFI trims only
- 1988-1991 Honda CRX (EF chassis) - MPFI trims only
Engine Compatibility: D-series MPFI and B-series MPFI engines on OBD0 vehicles.
Not compatible with: Carbureted OBD0 applications or DPFI (Dual-Point Fuel Injection) variants. This harness is for MPFI vehicles only.
OBD Note: Designed to connect an OBD0 MPFI vehicle harness to an OBD1 distributor. For a complete OBD0-to-OBD1 conversion, use alongside the SpeedFactory OBD0 MPFI to OBD1 Conversion Harness (sold separately).
| SKU | SFR-01-046 |
| Brand | SpeedFactory Racing |
| Application | OBD0 MPFI vehicle harness to OBD1 distributor |
| Compatible Chassis | Honda EF (Civic, CRX), Honda DA (Integra) - MPFI variants |
| Compatible Years | 1988-1991 |
| Engine Families | D-series MPFI, B-series MPFI (OBD0) |
| Wiring Standard | Automotive-grade, meets or exceeds OEM specifications |
| Connector Type | OEM-style pin connectors |
| Installation Type | Plug-and-play - no cutting, soldering, or splicing required |
| Quantity Included | 2x Distributor Jumper Harnesses |
| Modification Required | None |
| OBD Standard | OBD0 to OBD1 conversion |
- (2) SpeedFactory OBD0 MPFI to OBD1 Distributor Jumper Harnesses (SFR-01-046)