Denso 234-9135 Air / Fuel Ratio Sensor - Upstream, Upstream Front or Upstream Left

Reliable Air/Fuel Ratio Sensor for Select Nissan and Chevrolet Models

The Denso OE Style 234-9135 air/fuel ratio sensor is engineered to provide precise emissions control for specific Nissan and Chevrolet vehicles. Designed with a heated sensor element and a 4-wire configuration, this sensor ensures accurate fuel mixture readings for optimal engine performance.

• Heated sensor type for faster response and accurate readings
• Specific fitment for Nissan and Chevrolet models including Altima, Maxima, 370Z, Armada, and more
• 18.23-inch wiring harness length for proper installation
• 4-wire design compatible with factory wiring systems
• Regular grade type for standard OE replacement quality

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that meet original equipment specifications. The 234-9135 air/fuel ratio sensor is part of this line, ensuring compatibility and performance consistent with factory-installed components. This product line is tailored for direct replacement applications, maintaining the integrity of your vehicle's emission control system.

Detailed Product Description

This Denso air/fuel ratio sensor 234-9135 is a heated sensor designed to provide accurate oxygen level readings to the engine control unit. Its 4-wire configuration supports both the sensor heating element and signal transmission, enabling quicker sensor activation and reliable data output. The 18.23-inch wiring harness length allows for proper routing and connection within the engine bay. This sensor is a specific fit for Nissan models such as the Altima, Maxima, 370Z, Murano, Pathfinder, Sentra, and Infiniti models including the EX35, FX35, Q60, and QX70, as well as Chevrolet vehicles like the Armada and City Express.

Common Applications and Issues Addressed

• Helps maintain optimal air/fuel mixture for efficient combustion
• Reduces emissions by providing accurate sensor data to the ECU
• Prevents engine performance issues related to faulty oxygen sensing
• Resolves check engine light triggers related to air/fuel ratio sensor faults
• Improves fuel economy by ensuring proper sensor operation

Installation Notes and Tips

Ensure the vehicle is compatible with the Denso 234-9135 sensor before installation. Disconnect the battery and allow the engine to cool prior to sensor replacement. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the 18.23-inch wiring harness length is sufficient for your vehicle’s routing requirements. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Denso OE Style sensors are manufactured to meet original equipment standards, providing reliable performance and durability. This air/fuel ratio sensor undergoes rigorous quality control to ensure consistent operation. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.