Denso 234-4385 Oxygen Sensor - Upstream

Overview of the Denso OE Style Oxygen Sensor 234-4385

The Denso OE Style Oxygen Sensor 234-4385 is designed specifically for Mitsubishi Lancer models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 15.55-inch wiring harness, ensuring a secure and accurate fit.

• Heated oxygen sensor for faster response times
• Specific fit for Mitsubishi Lancer vehicles
• Threaded mounting with 0.708-inch thread diameter
• Four-wire design with female connector
• 15.55-inch wiring harness length for optimal installation

Detailed Product Description

The Denso OE Style line focuses on delivering original equipment quality and fitment, making the 234-4385 oxygen sensor a reliable replacement part for your Mitsubishi Lancer. This sensor uses a heated element to quickly reach operating temperature, improving fuel efficiency and reducing emissions. The four-wire configuration includes two wires for the heater circuit and two for the sensor signal, ensuring accurate oxygen level readings. The female connector and specific fitment guarantee compatibility and ease of installation without modification.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensors
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate sensor data
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Denso 234-4385 oxygen sensor on a Mitsubishi Lancer, ensure the engine is cool to avoid burns. Use a proper oxygen sensor socket for removal and installation to prevent damage to the sensor or wiring. Verify the connector is securely attached and the wiring harness is routed away from hot exhaust components. Follow vehicle-specific torque specifications for the threaded mounting to ensure a proper seal.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The 234-4385 part undergoes rigorous testing for fit, function, and emissions compliance. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship, providing confidence in your replacement sensor.