Denso 234-4604 Oxygen Sensor - Upstream

Overview of the Denso OE Style Oxygen Sensor 234-4604

The Denso OE Style Oxygen Sensor 234-4604 is designed specifically for Toyota Celica models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a 20.08-inch wiring harness length for a secure and accurate fit.

• Heated oxygen sensor for faster warm-up and accurate readings
• Specific fit for Toyota Celica vehicles
• Threaded mounting type with 0.708-inch thread diameter
• Four-wire design with male connector for reliable electrical connection
• 20.08-inch wiring harness length for proper installation

Detailed Product Description

The Denso 234-4604 oxygen sensor is engineered to meet the exact specifications of Toyota Celica models, providing precise air-fuel mixture data to the engine control unit. This sensor is a heated type, which allows it to reach operating temperature quickly, improving emission control efficiency. The four-wire configuration includes a male connector, ensuring compatibility with the vehicle’s wiring harness. Its threaded mounting type with a 0.708-inch diameter allows for secure installation in the exhaust system. The 20.08-inch wiring harness length offers sufficient reach for proper placement without strain.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that closely match original equipment specifications. This oxygen sensor is part of that line, designed to provide a direct replacement solution for Toyota Celica owners seeking reliable emission control components. The OE Style sensors maintain factory fit, form, and function, supporting vehicle performance and compliance with emission standards.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper fuel mixture adjustment
• Helps resolve rough idling caused by faulty sensor readings
• Reduces increased emissions due to sensor malfunction
• Prevents poor fuel economy linked to incorrect air-fuel ratios
• Eliminates check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Denso 234-4604 oxygen sensor on a Toyota Celica, ensure the sensor is threaded securely without over-tightening to avoid damage. Verify the four-wire male connector matches the vehicle harness for proper electrical connection. The 20.08-inch wiring harness length should be routed carefully to prevent contact with hot exhaust components or moving parts. It is recommended to use anti-seize compound on the threads if not pre-applied to facilitate future removal.

Quality Assurance and Warranty

Denso oxygen sensors, including the 234-4604, are manufactured to meet stringent quality standards for durability and performance. This part undergoes rigorous testing to ensure reliable operation under various driving conditions. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.