OBD1 Engine Wiring Harness For 1992-1995 Honda Civic & Acura Integra B16, B18, D16

An Engine Harness for the B16, B18, and D16

This is an OBD1 engine wiring harness built for the 1992-1995 Honda Civic and Acura Integra equipped with B16, B18, or D16 engines, cross-referenced to part numbers CNCH-0BD1-1 and FIC30. If you're swapping a B-series or D-series OBD1 engine into a compatible Civic or Integra chassis, this harness provides the factory-style wiring needed to connect the engine's sensors and components to the OBD1 ECU.

Why Engine Swaps Need a Matching Harness

Swapping a B16, B18, or D16 engine between compatible Civic and Integra chassis is a common upgrade path in the Honda and Acura community, but the engine wiring harness has to match both the engine's specific sensor layout and the OBD1 computer generation to work correctly. Using a harness built specifically for OBD1 (92-95) connectors means the plugs line up with the engine's factory sensors without needing to cut, splice, or adapt wiring, which is why enthusiasts doing these swaps look for a harness built to the exact OBD1 specification rather than a universal or mismatched one.

Key Features

• Cross-referenced to part numbers CNCH-0BD1-1 and FIC30
• Built to OBD1 (92-95) computer connector specifications
• PET-coated wiring rated to 150°C
• Approximately 95% plug and play with factory-style connectors

Specifications

• Application: Honda Civic, Acura Integra B16, B18, D16, OBD1
• Wire coating: PET, rated to 150°C
• Connectors: OBD1 (1992-1995) computer connectors
• Condition: New

Compatibility

Fits the 1992-1995 Honda Civic and Acura Integra chassis compatible with B16, B18, or D16 OBD1 engines. Because engine swap compatibility depends on the exact engine and chassis combination rather than the model year alone, confirming your specific engine code and providing the part number to our team before ordering is the best way to guarantee a correct match.

What's Included and What Isn't

This harness connects the oil pressure sending unit, knock sensor, intake air temperature sensor, primary oxygen sensor, alternator, injectors, MAP sensor, TPS sensor, idle control motor, VTEC solenoid, and related engine components to the OBD1 ECU. It does not include the charge harness, which must be run independently, and does not include headlight, dash light, or ECU/PCM plug wiring, so those connections need to be sourced separately for a complete swap.

Why a Dedicated Swap Harness Beats Splicing the Factory Wiring

Many DIY engine swaps start with an attempt to splice the donor engine's factory harness into the new chassis's wiring, which often leads to a tangle of spliced connections that are harder to diagnose if something goes wrong down the road. A purpose-built harness like this one is designed around the OBD1 connector layout from the start, meaning fewer splices, a cleaner installation, and less troubleshooting if a sensor connection needs to be checked later. For a swap that's meant to be reliable for daily driving rather than just a one-time track build, that cleaner wiring foundation tends to save time and frustration down the road.

Installation Notes

Installing this harness means routing it through the engine bay following the factory harness path, connecting each labeled plug to its corresponding sensor or component, and wiring the charge harness and ECU/PCM connections separately since they aren't included. Because a mismatched or reversed sensor connection can cause a no-start or check engine light, working through the connector list methodically and double-checking each connection before starting the engine is worth the extra care.

Ordering Information

This engine harness is in stock and ships ready to install. Our Shipping Information page covers current timelines, and our Warranty and Returns pages explain what to do if anything isn't right on arrival. Not sure this matches your specific swap combination? Our Request a Part page is the fastest way to confirm before you order.

Related Parts

This engine harness is listed in our Honda and Acura collections, along with our Engine Parts collection, where you'll find other parts for B-series and D-series swaps.