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Denso 234-9065 Air / Fuel Ratio Sensor - Upstream
| Brand | Denso 234-9065 |
|---|---|
| Position | Upstream |
| Connector Gender | Male |
| Grade Type | Regular |
| Sensor Type | Heated |
| Thread Diameter | 0.711 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 20.39 |
| Product line | OE Style |
| Fits | Honda and Acura · 6 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps maintain accurate air-fuel ratio monitoring.
Specific fit. Made for a direct, no-modification installation.
Cross-references ACDelco 213-3904, Bosch 15082 and Bosch 15950 for the same application. See all 15.
Denso OE Style Air/Fuel Ratio Sensor 234-9065
Denso 234-9065 is an OE Style heated air/fuel ratio sensor built for specific-fit replacement on select Honda and Acura applications. It is engineered and tested to OE standards for accurate signal response and a first-time fit on the vehicle.
For drivers searching for a direct replacement air fuel ratio sensor for 2006-2009 Honda S2000 or 2005-2006 Acura RSX upstream locations, this Denso sensor matches the original-style configuration and connector layout.
Key Features
- OE Style replacement for direct-fit service
- Heated sensor design for faster operating temperature
- Specific fit application for accurate installation
- 4-wire configuration with male connector
- Wiring harness length: 20.39 in.
- Thread diameter: 0.711 in.
- Built and tested to OE standards
Detailed Description
Denso 234-9065 air/fuel ratio sensor is designed for upstream exhaust monitoring on select Honda and Acura models. As an OE Style part, it follows the original sensor format closely, helping maintain proper air-fuel feedback to the engine control system. This is a practical choice for owners needing a replacement oxygen sensor-style component for 2006-2009 Honda S2000 or 2005-2006 Acura RSX applications.
The Denso OE Style line focuses on exact replacement dimensions and connector fitment, which helps reduce installation issues and supports consistent sensor integration. This part cross-references Bosch 15082 and NTK 24694 for the same application.
What It Helps Address
- Check engine light related to upstream air/fuel ratio sensor faults
- Rough idle caused by incorrect exhaust feedback
- Fuel trim issues from inaccurate sensor readings
- Emissions test failures tied to sensor performance
- Delayed closed-loop operation after startup
Installation Notes and Tips
Verify the upstream sensor location before ordering, since this part is not for downstream positions. Confirm connector style, wire count, and thread diameter against the original sensor before installation. For best results, inspect the harness routing and exhaust threads for damage or contamination before fitting the new sensor.
Quality Assurance
Denso manufactures and tests this sensor to OE standards for consistent fit and performance. The OE Style product line is intended to provide the correct part and fit for the listed Honda and Acura applications, including 2006-2009 Honda S2000 and 2005-2006 Acura RSX upstream service.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2009 | Honda | S2000 | — | Upstream | OE Style |
| 2008 | Honda | S2000 | — | Upstream | OE Style |
| 2007 | Honda | S2000 | — | Upstream | OE Style |
| 2006 | Acura | RSX | Automatic | Upstream | OE Style |
| 2006 | Honda | S2000 | — | Upstream | OE Style |
| 2005 | Acura | RSX | Automatic | Upstream | OE Style |
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