Delphi ES20411 Oxygen Sensor - Rear

Delphi ES20411 Heated Oxygen Sensor Overview

The Delphi ES20411 is a heated oxygen sensor designed for precise emission control in select Honda vehicles. Engineered to meet OEM specifications, this sensor ensures accurate air-fuel mixture readings for optimal engine performance and reduced emissions.

• Heated sensor type for faster warm-up and improved efficiency
• 4-wire configuration for reliable signal transmission
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with designated Honda models
• Overall length of 850 mm for correct installation depth
• Positioned for rear placement in the exhaust system
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES20411 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, improving emission control accuracy shortly after engine start. Its 4-wire design supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size are tailored for a secure fit in the rear exhaust position of Honda CR-Z, Fit, and Insight models. With an overall length of 850 mm, this sensor fits precisely to maintain proper exhaust flow and sensor function.

Compatible Honda Models and Applications

This oxygen sensor is compatible with the following Honda vehicles:

• Honda CR-Z
• Honda Fit
• Honda Insight

It is specifically designed for rear exhaust placement, making it suitable for emission control systems requiring heated oxygen sensors in these models.

Common Issues Addressed by the Delphi ES20411

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues related to exhaust gas monitoring
• Failed emissions tests linked to sensor degradation

Installation Notes and Tips

When installing the Delphi ES20411 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use the included instruction sheet for proper wiring and torque specifications. Verify the square connector is fully seated to prevent signal interruptions. It is recommended to replace the sensor in the rear exhaust position as indicated for the Honda CR-Z, Fit, and Insight models to maintain emission system integrity.

Quality Assurance and Warranty

Delphi manufactures the ES20411 oxygen sensor to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects. Refer to the product documentation for exact warranty terms.