Denso 234-4358 Oxygen Sensor - Downstream

Overview of the Denso OE Style Oxygen Sensor 234-4358

The Denso OE Style Oxygen Sensor 234-4358 is designed specifically for Acura and Honda vehicles, including the Civic, CSX, and Fit models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Acura and Honda Civic, CSX, and Fit
• 33.78 inches wiring harness length for precise installation
• Threaded mounting type with 0.708 inch thread diameter
• Four-wire configuration with female connector

Detailed Features and Specifications

The Denso 234-4358 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its specific fitment ensures compatibility with select Acura and Honda models, including the Civic, CSX, and Fit, providing a direct replacement without modification. The sensor includes a 33.78-inch wiring harness, allowing for proper routing and connection within the vehicle’s exhaust system. The four-wire design supports both the sensor signal and heater circuit, while the female connector ensures secure electrical connections. The sensor mounts via a threaded fitting with a 0.708-inch diameter, matching OEM specifications for reliable installation.

About the OE Style Product Line

The Denso OE Style product line focuses on delivering parts that meet original equipment specifications for fit, form, and function. This oxygen sensor from the OE Style line is engineered to match the performance and durability of the factory-installed sensor, making it a suitable replacement for Acura and Honda vehicles requiring precise emissions control components.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light codes related to oxygen sensor failure
• Improves fuel economy by ensuring efficient combustion
• Reduces harmful emissions by maintaining proper sensor operation
• Prevents rough idling and engine performance issues caused by faulty sensors

Installation Notes and Tips

When installing the Denso 234-4358 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the sensor’s connector matches the vehicle’s female connector for a secure fit. Thread the sensor carefully into the exhaust port to the specified torque to prevent leaks or damage. It is recommended to inspect the wiring harness for any wear or damage during installation.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The 234-4358 sensor undergoes rigorous testing to ensure durability and reliable performance in emission control systems. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s long-term operation.