OBD1 Engine Harness – 88-91 Honda EF Civic / CRX | Complete Swap Kit | VTI StreetSpec

VTI StreetSpec OBD1 Complete Swap Kit – 88-91 Honda EF Civic / CRX

Built for the chassis that started it all. The VTI StreetSpec Complete Swap Kit is everything you need to fully rewire your EF Civic or CRX in one curated package — no sourcing, no guesswork, no compromises.

Built in-house using TXL automotive-grade wire, finished in FR expandable loom and SCL-style heat shrink. No Tessa tape. No budget shortcuts. Every kit ships ready to install.

What's Included in Every Complete Kit

• VTI StreetSpec OBD1 Engine Harness (88-91 EF / CRX application-specific)
• VTI Chassis Interface Harness — plug-and-play, zero interior splicing required
• Charge Cable — GXL automotive-grade wire, SCL heat shrink terminated
• Ground Cable Kit — GXL automotive-grade wire, multi-point, motorsports spec termination

What's Built Into Every StreetSpec Harness

• OBD1 ECU configuration — P28 / P30 / P72 compatible
• Clean, optimized branch layout per VTI routing standards
• Pre-wired boost control solenoid lead (ECU output ready — no splicing)
• Pre-wired no-splice wideband input lead
• Injector, distributor, and sensor connections fully terminated
• FR expandable loom throughout — no Tessa tape, no budget filler
• SCL-style heat shrink at all transitions and terminations
• Clearly labeled connections for a confident, straightforward install

Available Base Configurations

• B-Series (standard)
• D-Series (standard)
• H-Series (optional)

Adjustments Available — No Main Loom Rework Required

• Connector end changes (injectors, sensors, etc.)
• Coil-on-plug integration
• Sensor branch removal (factory wideband, unused emissions)
• Minor routing refinements

Need a full custom layout? See our Mil-Spec harness options.

How It Works

After purchase, you'll complete our Build Confirmation Form. This locks in your exact ECU, sensor, and engine configuration before your kit ships — built ahead, finished for your setup, ready to install.