For enthusiasts and mechanics seeking reliable and efficient engine management solutions, the Rywire Budget B-series OBD2 Engine Harness stands out as a top choice. Designed for Honda and Acura vehicles utilizing B-series engines and OBD2 systems, this harness delivers performance and simplifies the complexities of engine swaps and upgrades. Built with quality and precision, it mirrors Rywire’s renowned Mil-spec line, offering a budget-friendly alternative without compromising essential features.
Key Features of the Rywire Budget B-Series OBD2 Harness
This engine harness is packed with features designed for optimal performance and ease of installation:
- High-Quality Construction: Utilizing all-new connectors and materials, this harness ensures reliable connections and longevity.
- OEM-Grade Crimping: Each connector is pneumatically crimped to meet OEM standards, guaranteeing secure and consistent connections.
- Labeled for Easy Installation: White identification labels on each connector streamline the installation process, minimizing errors and saving time.
- Enhanced Circuit Protection: Heavy interference circuits are properly shielded and grounded, ensuring signal integrity and preventing electrical noise.
- 100% Quality Tested: Every harness undergoes rigorous pin-to-pin and resistance testing to eliminate voltage fluctuations and guarantee flawless operation right out of the box.
- Durable and Flexible Loom: Encased in a durable expandable loom, the wiring is protected from abrasion and heat while maintaining flexibility for routing.
OBD Compatibility and Important Notes for Your B-Series Swap
Understanding OBD compatibility is crucial for a successful engine harness installation. Here’s what you need to know about the Rywire B-series OBD2 Harness:
- OBD1 Computer Connectors: Rywire harnesses are built with OBD1 (92-95) computer connectors as standard.
- OBD2 Computer Adapters: For those using OBD2a or OBD2b computers, a computer adapter is necessary to ensure seamless integration.
- USDM OBD2 Computer Incompatibility: It’s important to note that this harness does not directly support USDM OBD2 computers.
- Aftermarket and Non-US OBD2 Computer Compatibility: The harness is compatible with aftermarket computers using OBD2 plugs and Non-US OBD2 computers (excluding H22 and GSR stock computers). This provides flexibility for various performance tuning setups.
Chassis Adaptability with a Unique Sub-Harness System
Rywire has engineered this harness with adaptability in mind. The innovative sub-harness system offers a significant advantage:
- Customizable Chassis Sub-Harness: Each harness includes a custom back-side sub-harness tailored to your chosen chassis.
- Simplified Chassis Changes: If you decide to swap chassis in the future, you only need to replace the sub-harness, not the entire engine harness. This modular design saves you money and simplifies future modifications.
- Separate Sub-Harness Availability: For existing Rywire engine harness customers, replacement sub-harnesses can be purchased separately by phone, further enhancing the system’s flexibility.
Warranty and Purchase Assurance
Rywire stands behind the quality and performance of their harnesses:
- Guaranteed to Work: These harnesses are warrantied and guaranteed to function correctly, providing peace of mind with your purchase.
- Non-Refundable Policy: Please be aware that these harnesses are non-refundable. Rywire encourages careful review of the available options to ensure you select the correct parts for your specific application.
Comprehensive Connector List
The Rywire Budget B-series OBD2 Harness includes connections for all essential engine sensors and components. Below is a detailed list of connectors included:
| Connector Type | Description |
|---|---|
| Oil Pressure Sending Unit | Monitors engine oil pressure |
| Knock Sensor | Detects engine knocking or detonation |
| Intake Air Temperature (IAT) | Measures intake air temperature (manifold style) |
| Oxygen Sensor (Primary 4 Wire) | Connects to the primary oxygen sensor |
| OBD2 Alternator Plug Type | Compatible with OBD2 alternators |
| 2 Extra Wires | Additional wires for custom applications |
| OBD2 Injectors 1-4 | Connects to OBD2 fuel injectors (1-4) |
| MAP Sensor | Manifold Absolute Pressure sensor |
| TPS (Throttle Position Sensor) | Throttle position sensor connection |
| Idle Control Motor | Controls idle speed |
| Electronic Speed Sensor | Vehicle speed sensor connection |
| Ground | Essential grounding point |
| Fan Switch | Controls radiator fan operation |
| OBD2 10-Pin Distributor Plug | Compatible with OBD2 10-pin distributors |
| H20 Sending Unit | Water temperature sender for gauge cluster |
| Reverse Lights | Reverse light switch connection |
| Engine Coolant Temp (ECT) | Engine coolant temperature sensor |
| Starter Signal | Starter motor signal wire |
| VTEC Solenoid | Variable Valve Timing and Lift Electronic Control |
| OBD1 Computer Plugs A, B, D | Connectors for OBD1 computers (A, B, D plugs) |
| Power Distribution Cap | Connection for power distribution cap |
Installation Instructions for Various Chassis
Rywire provides detailed instructions for installing the Budget Tucked and Mil-spec engine harnesses in different Honda and Acura chassis. Download the PDF instructions specific to 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
The Rywire Budget B-series OBD2 Harness is an excellent choice for those seeking a high-quality, adaptable, and budget-conscious wiring solution for their B-series engine swaps and upgrades. With its robust construction, comprehensive connector list, and chassis adaptability, it streamlines the wiring process and ensures reliable performance. Explore the options and empower your ride with Rywire’s trusted quality.
