Delphi ES20107 Oxygen Sensor - Rear

Delphi ES20107 Heated Oxygen Sensor Overview

The Delphi ES20107 is a heated oxygen sensor designed for precise emission control in select Chevrolet, Oldsmobile, and Pontiac vehicles. Engineered with a 4-wire configuration and a square connector shape, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for fast response
• Square connector shape for secure electrical connection
• Thread size of 18 x 1.5 mm for proper fitment
• Overall length of 1100 mm to accommodate rear position installation
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES20107 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving emission control efficiency. Its 4-wire setup supports both sensor heating and signal transmission, enhancing durability and accuracy. The sensor’s square connector shape and 18 x 1.5 mm thread size ensure compatibility with the rear exhaust system of Chevrolet Alero, Oldsmobile Classic, Pontiac Corvette, and Pontiac Grand Am models. With an overall length of 1100 mm, it fits precisely in the designated rear position, maintaining proper sensor placement for reliable readings.

Applications and Problem Resolution

This oxygen sensor is used to monitor exhaust gases and provide feedback to the engine control unit (ECU) for adjusting the air-fuel ratio. Installing the Delphi ES20107 can help address the following issues:

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions failing regulatory standards
• Engine hesitation or rough idling caused by sensor malfunction
• Failed emissions test related to sensor performance

Installation Notes and Tips

When installing the Delphi ES20107 oxygen sensor, ensure the vehicle is compatible by verifying make and model fitment. Use the included instruction sheet for proper torque specifications and wiring connections. It is recommended to replace the sensor when the engine and exhaust system are cool to avoid burns. Confirm the sensor is installed in the rear position as specified for optimal operation.

Quality Assurance and Warranty

Delphi manufactures the ES20107 oxygen sensor to meet OEM standards for durability and performance. The sensor undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to support long-term use.