For car enthusiasts and mechanics looking to optimize engine performance without breaking the bank, the Rywire Budget Obd2 Harness offers a fantastic solution. As a near-identical alternative to our Mil-spec engine harness line, the primary differences lie in the single black wire color and the expandable loom used, making it a cost-effective yet high-quality upgrade. Choosing the right harness is crucial, so explore the available options carefully to ensure perfect compatibility for your specific needs.
What is an OBD2 Harness and Why Upgrade?
An OBD2 harness is the central nervous system of your engine’s electronics, connecting vital sensors, injectors, and ignition components to your car’s computer (ECU). Upgrading to a high-performance OBD2 harness like the Rywire Budget series can significantly improve your engine’s reliability and performance, especially in modified vehicles or engine swap projects. A new, quality harness eliminates issues associated with old, brittle, or damaged wiring, ensuring optimal signal transmission and power delivery.
Key Features of the Rywire Budget OBD2 Harness
Despite being a budget-friendly option, the Rywire Budget OBD2 Harness doesn’t compromise on quality. We use only new connectors and materials, guaranteeing longevity and reliable connections. Each connector is crimped using precision pneumatic heads to achieve an OEM-level crimp, ensuring secure and consistent contact. For easy installation, every connector is tagged with a white identification label, simplifying the process and reducing the chance of errors. Critical circuits prone to interference are properly shielded and grounded, minimizing electrical noise and ensuring clean signal transmission. Furthermore, each engine harness undergoes rigorous 100% quality testing, including pin-to-pin continuity and resistance checks, to eliminate voltage fluctuations and guarantee optimal performance right out of the box.
OBD2 Harness Compatibility: Understanding OBD1 and OBD2 Systems
It’s important to note that all Rywire engine harnesses are built with OBD1 (92-95) Computer Connectors. This design choice offers versatility, allowing for compatibility with OBD2a or OBD2b computers through the use of readily available adapters. However, our harness is not directly compatible with USDM OBD2 computers. This is a crucial distinction for customers in the US market. The Rywire Budget OBD2 Harness is designed to work seamlessly with aftermarket computers utilizing OBD2 plugs and Non-US OBD2 computers (excluding H22 and GSR stock computers). This broad compatibility makes our harness a popular choice for engine swaps and performance builds using a variety of ECUs.
Chassis Adaptability: One Harness, Multiple Cars
A unique feature of the Rywire engine harness is its custom back-side sub-harness. This sub-harness is specifically designed for the chassis you select during purchase. This innovative design means that if you decide to change your vehicle chassis in the future, you won’t need to buy a completely new wiring loom. Instead, you can simply purchase a new sub-harness, saving you significant cost and effort. This modular design makes the Rywire OBD2 harness a truly versatile and future-proof investment. We offer these back-side sub-harnesses separately to existing engine harness customers via phone order.
Rywire OBD2 Harness Connector List:
| • Oil Pressure Sending Unit | • Knock Sensor | • Intake Air Temperature (Intake Manifold Style) |
|---|---|---|
| • Oxygen Sensor (Primary 4 Wire) | • OBD2 Alternator Plug type | • 2 Extra Wires |
| • OBD2 Injectors 1-4 | • MAP Sensor | • TPS (Throttle position) |
| • Idle Control Motor | • Electronic Speed Sensor | • Ground |
| • Fan Switch | • OBD2 10-pin Distributor plug | • h20 Sending Unit (for Gauge Cluster) |
| • Reverse Lights | • Engine Coolant Temp | • Starter Signal |
| • VTEC Solenoid | • OBD1 Computer Plugs A,B,D | • Power Distribution Cap |
Installation Instructions and Chassis Adapters
To further assist with your installation, we provide detailed PDF instructions for various chassis configurations. These guides are specific to different Civic and Integra models and OBD2a/OBD2b vehicles, ensuring a smooth and correct installation process. Please refer to the links below to download the appropriate instruction manual for your vehicle:
- 88-91 CRX/Civic Chassis Adapter Instructions
- 90-91 Integra DA Chassis Adapter Instructions
- 92-95 Civic & 92-95 Integra Chassis Adapter Instructions
- OBD2a Vehicle Chassis Adapter Instructions
- OBD2b Vehicle Chassis Adapter Instructions
Guaranteed Performance, Non-Refundable Assurance
Rywire Budget OBD2 Harnesses are warrantied and guaranteed to function correctly, providing peace of mind with your purchase. While these harnesses are non-refundable, our commitment to quality and rigorous testing ensures you receive a product built to perform. Upgrade your engine’s wiring with confidence and experience the Rywire difference.
