Denso 234-4815 Oxygen Sensor - Downstream or Upstream

Overview of Denso OE Style Oxygen Sensor 234-4815

The Denso OE Style Oxygen Sensor 234-4815 is designed for precise emission control in select GM and Saab vehicles. This heated oxygen sensor features a specific fitment for models such as the Buick Enclave, Chevrolet Equinox, and Cadillac SRX, ensuring reliable performance and compatibility.

• Heated sensor type for faster activation and accurate readings
• Specific fitment for Buick, Cadillac, Chevrolet, GMC, Saab, and Saturn models
• 12.24-inch wiring harness length with 4 wires and female connector
• Threaded mounting type with 0.708-inch thread diameter for secure installation
• Part number 234-4815 for easy identification and replacement

Detailed Product Description

The Denso OE Style line focuses on providing oxygen sensors that meet original equipment specifications for fit, form, and function. The 234-4815 oxygen sensor is a heated type, which means it includes an internal heating element to bring the sensor up to operating temperature quickly. This feature improves fuel efficiency and reduces emissions by enabling the engine control unit to adjust the air-fuel mixture sooner after startup.

This sensor is designed with a 12.24-inch wiring harness and a female connector, making it compatible with the factory wiring harnesses on specific vehicles. The threaded mounting type with a 0.708-inch diameter ensures a secure and leak-free installation. With four wires, this sensor supports both the signal and heater circuits necessary for proper operation.

Compatible Vehicles and Applications

This oxygen sensor is specifically compatible with a range of GM and Saab vehicles, including:

• Buick Enclave, LaCrosse, and Rendezvous
• Cadillac SRX and ELR
• Chevrolet Equinox, Impala, Impala Limited, Traverse, and Volt
• GMC Acadia, Terrain, and Outlook
• Saab 9-4X
• Saturn Aura and Vue (Captiva Sport)

Common Issues Addressed by This Oxygen Sensor

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine hesitation or rough idling caused by sensor malfunction
• Delayed sensor response affecting engine performance

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use an oxygen sensor socket or appropriate tool for removal and installation
• Apply anti-seize compound to the sensor threads if not pre-coated
• Verify connector polarity and secure wiring harness connection
• Clear any diagnostic trouble codes after installation to reset the system

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet or exceed OEM standards for durability and performance. The 234-4815 part undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Denso typically offers a limited warranty covering defects in materials and workmanship.