B / D-Series Chassis Subharness – 88-91 Honda Civic EF / CRX OBD0 Swap | VTI

Clean Chassis Integration. No Interior Splicing.

The VTI B & D-Series chassis subharness provides a structured, reliable interface between your engine harness and the factory chassis wiring on your 88-91 Honda EF Civic or CRX. Proper signal routing, OEM-style connector interfaces, and labeled leads — everything you need for a clean swap without hacking up your interior wiring.

Function & Integration

• Tachometer signal routing
• MIL / Check Engine Light integration
• Vehicle Speed Sensor routing (where applicable)
• OEM-style chassis connector interface
• Labeled ECU-side leads for simplified installation

Compatible with OEM ECU setups and most standalone configurations when paired with the appropriate engine harness.

Engine Compatibility

• B16, B18, B20
• D15, D16

Construction

• TXL automotive-grade wire
• OEM-style connector interfaces
• Professionally loomed and strain relieved
• Built and inspected in-house

This is our standardized Budget-Spec configuration. Mil-spec or custom routing options available upon request.

Note: This listing is for the chassis integration subharness only. Main engine harness sold separately.