Delphi ES20110 Oxygen Sensor - Rear

Delphi ES20110 Heated Oxygen Sensor Overview

The Delphi ES20110 is a heated oxygen sensor designed for rear position installation on select Chevrolet and Pontiac models. This sensor helps maintain optimal engine performance and emissions control by accurately monitoring oxygen levels in the exhaust system.

• Heated sensor type for faster response times
• Four-wire design ensuring reliable signal transmission
• Square connector shape for secure and precise fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 1250 mm for proper installation reach
• Includes oxygen sensor and instruction sheet for installation guidance

Detailed Product Description

The Delphi ES20110 oxygen sensor is engineered to meet the emission control requirements of Chevrolet Cavalier, Pontiac Grand Am, and Pontiac Sunfire models. Featuring a heated sensor element, it achieves quicker activation and more accurate readings under various operating conditions. The four-wire configuration supports both the sensor signal and heater circuit, improving durability and performance. Its square connector shape ensures a secure connection, reducing the risk of electrical issues. The 18 x 1.5 mm thread size and 1250 mm overall length are designed to fit the rear exhaust position on compatible vehicles, facilitating straightforward replacement and reliable operation.

Common Applications and Issues Addressed

• Helps reduce harmful emissions by providing accurate oxygen level data
• Improves fuel efficiency through precise air-fuel mixture adjustments
• Resolves engine performance problems related to faulty oxygen sensors
• Prevents check engine light triggers caused by sensor malfunctions
• Supports proper catalytic converter function by monitoring exhaust gases

Installation Notes and Tips

• Ensure the vehicle is compatible: Chevrolet Cavalier, Pontiac Grand Am, or Pontiac Sunfire rear oxygen sensor replacement
• Disconnect the battery before installation to avoid electrical shorts
• Use appropriate tools to remove the old sensor and install the Delphi ES20110
• Follow the included instruction sheet for wiring and connector details
• Verify sensor operation after installation by checking for error codes or engine light status

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM specifications, ensuring reliable performance and durability. The ES20110 part number undergoes rigorous testing to comply with emission standards and vehicle requirements. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to support long-term use.