Rywire RY-B2-EF-DX-LATE Honda B/D-Series OBD2 Budget Tucked Engine Harness for 90-91 Civic CRX DX

The Rywire RY-B2-EF-DX-LATE is a budget-friendly tucked engine harness designed for Honda B-Series and D-Series engine swaps in 1990-1991 Honda Civic and CRX DX/STD chassis. This complete wire-tuck solution includes both the tucked engine harness and the matching chassis-specific adapter harness for seamless integration with your EF chassis interior and shock tower connections.

Key Features:

• OBD2 engine-side wiring (distributor, injectors, alternator) with OBD1 ECU plugs for maximum compatibility
• Mil-Spec Teflon coated wire rated to 200°C for superior heat resistance
• Budget construction uses single black wire color and expandable loom covering
• All new connectors with pneumatic crimps and white identification labels for easy installation
• Pin-to-pin quality tested and resistance checked to prevent voltage fluctuations
• Heavy interference circuits properly protected and grounded
• Split harness design allows engine side to be transferred to other EF chassis with adapter change
• Compatible with both Honda B-Series and D-Series engines
• Made in the USA by Rywire

This harness uses OBD1 (1992-1995) computer connectors, making it compatible with Hondata, K-Pro, and stock OBD1 ECUs. The OBD2 engine-side components allow use with OBD2 distributors, injectors, and alternators while maintaining OBD1 ECU compatibility. The modular design means you only need to replace the chassis adapter if you change vehicles, not the entire harness.

Note: Injector adapters, alternator adapters, distributor adapters, and charge harnesses are sold separately. This harness is warrantied and guaranteed to work but is non-refundable once installed.