labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1
labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1 is a wiring adapter for manual transmission models, priced at $25.05. It enables OBD1 ECU swaps in 1988–1991 Honda Civics, CRXs, and Acura Integras, ideal for engine upgrades requiring modern ECU integration.
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Key features
- Manual transmission only design
- OBD1 ECU compatibility (1992–1995)
- Supports VTEC, O2 sensor, knock sensor
- Color-coded wires for easy installation
- Plug-and-play对接 with minimal splicing
- Requires OBD1 distributor and 4-wire O2
- Professional installation recommended
Pros
- +Enables modern ECU upgrades
- +Precise Honda-specific wiring
- +Cost-effective vs full harness swap
- +Clear color-coded connections
- +Supports key engine functions
Cons
- −Manual transmission only
- −Not for automatic models
- −Requires additional OBD1 parts
- −Not plug-and-play without ECU
About labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1
What is labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1?
This is a wiring adapter from Lab Work Auto that lets you run a 1992-1995 OBD1 Honda or Acura ECU in an older 1988-1991 OBD0 chassis. It bridges the two connector pinouts so the newer computer can talk to the original engine harness, which is the foundation of nearly every classic Honda tuning or swap project.
Key features
- OBD0 to OBD1 conversion — adapts a 1988-1991 OBD0 engine harness to accept any 1992-1995 OBD1 ECU.
- Verified fitment — works with 1988-1991 Honda CRX (HF, Si, or MPFI converted), Civic (EX, Si, or MPFI converted), and Acura Integra.
- Manual transmission only — built for 5-speed cars; it will not work with automatic models.
- Full signal support — carries VTEC solenoid and pressure switch, O2 sensor heater and signal, knock sensor, IAB, IGP power, ground, and the service check signal.
- Color-coded wires — each lead is labeled by color and function (blue, white, violet, gray, green, orange, red/pink, black/brown, yellow) for cleaner installs.
- Simple package — ships as one conversion jumper harness, ready to splice in.
Who is labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1 for?
This harness is aimed at Honda and Acura enthusiasts doing an ECU upgrade, an engine swap, or a tuning project on a manual CRX, Civic, or Integra. You will also need an OBD1 ECU, distributor, and a 4-wire O2 sensor, so it suits intermediate to advanced DIYers, and professional installation is recommended.
How does labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1 compare?
Compared with full custom-built conversion harnesses from specialty shops, this jumper is a far more affordable plug-in solution that keeps your original engine wiring intact. Versus generic universal adapters, it offers a defined pinout mapped to documented OBD0-to-OBD1 signals rather than asking you to chase wires on your own.
Best use cases
- →OBD1 ECU swap in 1990 Civic Si
- →Engine upgrade in CRX HF
- →VTEC activation in D16 build
- →Modernizing 1989 Integra ECU
- →DIY performance tuning project
Is labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1 right for you?
Buy this harness if you're upgrading to an OBD1 ECU in a manual 1988–1991 Honda Civic, CRX, or Acura Integra. Ideal for intermediate to advanced DIYers with access to an OBD1 ECU, distributor, and 4-wire O2 sensor. Not for automatics or beginners. Alternatives include full harness swaps or standalone engine management systems.
How it compares: Compared to universal wiring kits, this harness offers superior Honda-specific integration. It’s more reliable than splice-heavy custom builds and cheaper than full harness replacements, making it the best middle-ground solution for OBD0-to-OBD1 conversions.
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$7.91Frequently Asked Questions
What vehicles is this harness compatible with?
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It fits 1988–1991 Honda Civic (Ex, Si, MPFI converted), CRX (Hf, Si, MPFI), and Acura Integra with manual transmission only. Not for automatic models.
Does this harness work with automatic transmissions?
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No, this harness is designed exclusively for 5-speed manual transmission applications and will not function with automatic transmission models.
How do I install the labwork jumper harness?
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Connect it between your OBD0 harness and OBD1 ECU. Requires proper routing of VTEC, O2, knock, and IAB wires. Professional installation is highly recommended.
Is this a plug-and-play solution?
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It’s semi plug-and-play but requires an OBD1 ECU, distributor, and 4-wire O2 sensor. Some minor wiring对接 may be needed for full functionality.
Can I use this with a standalone ECU?
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No, this harness is designed specifically for OBD1 Honda ECUs (1992–1995). It is not compatible with aftermarket standalone engine management systems.
How much does labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1 cost?
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labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1 is $25.05 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1 in stock at Lab Work Auto?
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Yes, labwork Conversion Jumper Harness For 88-91 Honda Civic Acura ECU OBD0 to OBD1 is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-014657