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Denso 234-9002 Air / Fuel Ratio Sensor - Upstream
| Brand | Denso 234-9002 |
|---|---|
| Position | Upstream |
| Grade Type | Regular |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 13.39 |
| Product line | OE Style |
| Fits | Toyota · 15 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Delivers fast, reliable air/fuel ratio monitoring.
Manufactured and tested to strict OE standards.
Cross-references ACDelco 213-2857, ACDelco 213-2858 and BorgWarner OS1532 for the same application. See all 19.
Denso OE Style Air/Fuel Ratio Sensor
Denso 234-9002 is an OE Style heated air/fuel ratio sensor built for specific-fit replacement on select Toyota applications. It is engineered for exact replacement fitment and consistent signal performance in upstream emission control locations.
Key Features
- Heated air/fuel ratio sensor for upstream emission control monitoring
- Specific fit design for direct replacement on listed Toyota vehicles
- 4-wire configuration with a 13.39 in. wiring harness length
- Regular grade type for OE-style service replacement
- Built and tested to OE standards for fit and function
Product Details
The Denso OE Style line focuses on direct-fit replacement parts that match original equipment requirements. This Denso 234-9002 air/fuel ratio sensor is precision-built for the correct fit the first time, helping maintain accurate exhaust feedback on Toyota Tacoma and Toyota 4Runner upstream applications. It cross-references Bosch 13613 and NTK 24669 for the same application.
Compatible With 2001-2004 Toyota Tacoma, upstream; 2001-2002 Toyota 4Runner, upstream; and 1999-2000 Toyota 4Runner, upstream. It also fits 2000 Toyota Tacoma, upstream, for California exempt parts use on pollution controlled vehicles in California.
Common Issues This Sensor Can Address
- Fault codes related to upstream air/fuel ratio sensor performance
- Rough idle or inconsistent fuel control caused by inaccurate exhaust feedback
- Failed emissions inspection tied to sensor response issues
- Delayed closed-loop operation after startup
- Replacement needs for worn or damaged OE-style sensor wiring
Installation Notes and Tips
Verify the upstream sensor location before installation and confirm connector style, wire count, and harness length against the original part. Because this is a specific-fit sensor, compare the vehicle year, model, and emissions configuration before ordering. Use the listed Toyota Tacoma and Toyota 4Runner fitment data to confirm application match.
Quality Assurance
Denso manufactures and tests these sensors to strict OE standards for replacement accuracy and first-time fit. The OE Style product line is intended to deliver the correct part and fit for the listed Toyota applications.
| Year | Make | Model | Drive Type | Transmission | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Toyota | Tacoma | — | Automatic | Upstream | OE Style |
| 2003 | Toyota | Tacoma | — | Automatic | Upstream | OE Style |
| 2002 | Toyota | 4Runner | — | — | Upstream | OE Style |
| 2002 | Toyota | Tacoma | 4WD | Manual | Upstream | OE Style |
| 2002 | Toyota | Tacoma | — | Automatic | Upstream | OE Style |
| 2001 | Toyota | 4Runner | — | — | Upstream | OE Style |
| 2001 | Toyota | Tacoma | 4WD | Manual | Upstream | OE Style |
| 2001 | Toyota | Tacoma | — | Automatic | Upstream | OE Style |
| 2000 | Toyota | 4Runner | RWD | — | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2000 | Toyota | 4Runner | 4WD | Automatic | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2000 | Toyota | 4Runner | — | Automatic | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2000 | Toyota | Tacoma | — | Manual | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1999 | Toyota | 4Runner | RWD | — | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1999 | Toyota | 4Runner | 4WD | Automatic | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1999 | Toyota | 4Runner | — | Automatic | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
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