Denso 234-2058 Oxygen Sensor - Upstream

Denso OE Style Oxygen Sensor 234-2058

Denso 234-2058 is an OE Style oxygen sensor built for direct replacement on select Toyota applications. It is a specific-fit, non-heated sensor with a 2-wire design and an 11.81-inch wiring harness length for a factory-style installation.

Compatible with 1996 Toyota Camry upstream, 1996-1997 Toyota RAV4 upstream, and 1996-1999 Toyota Celica upstream, this Denso oxygen sensor supports accurate exhaust feedback for the engine management system. The OE-style design helps maintain the original sensor layout on the vehicle.

Key Features

• OE Style replacement oxygen sensor for direct-fit service
• Specific fit for select Toyota models and upstream locations
• Non-heated sensor design with 2-wire configuration
• 11.81-inch wiring harness length for factory-style routing
• Built and tested to OE standards for replacement accuracy
• Uses Denso’s aluminum oxide trap layer to help protect the sensing element

Product Details

Denso 234-2058 is engineered as an OE-style oxygen sensor for Toyota Camry, Toyota RAV4, and Toyota Celica applications listed above. The sensor is precision built for exact replacement fitment, and the aluminum oxide trap layer helps shield the ceramic element from silicone and lead contamination that can affect sensor performance. This part cross-references Bosch 12105 and NTK 24514 for the same application.

Common Issues This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture feedback to the engine control system
• Reduced fuel economy caused by a worn upstream sensor
• Slow or inaccurate exhaust oxygen readings
• Failed emissions testing tied to sensor response problems

Installation Notes and Tips

Verify the connector style, wire count, and upstream location before installation. Match the harness length and routing to the original sensor to avoid strain on the lead. For best results, inspect the exhaust threads and surrounding wiring before replacing the sensor on a 1996-1999 Toyota Celica, 1996-1997 Toyota RAV4, or 1996 Toyota Camry.

Quality Assurance

Denso manufactures and tests this OE Style oxygen sensor to strict original-equipment standards for fit and function. The part number 234-2058 is designed as a direct replacement for the listed Toyota applications, with attention to first-time fit and long-term sensor protection.