Delphi ES10910 Oxygen Sensor - Rear

Delphi ES10910 Heated Oxygen Sensor Overview

The Delphi ES10910 is a heated oxygen sensor designed specifically for the rear position on Ford Focus models. This sensor plays a critical role in monitoring exhaust gases to optimize engine performance and reduce emissions.

• Heated sensor type for faster warm-up and accurate readings
• Four-wire design ensuring reliable electrical connections
• Square connector shape for secure fitment
• Thread size of 18 x 1.5 mm compatible with Ford Focus exhaust systems
• Overall length of 400 mm for proper installation
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES10910 oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response time and fuel management accuracy. Its four-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape is designed to match the factory wiring harness on Ford Focus vehicles, simplifying installation. With a thread size of 18 x 1.5 mm and an overall length of 400 mm, this sensor fits precisely in the rear exhaust position, maintaining proper exhaust flow and sensor function.

Applications and Problem Resolution

This oxygen sensor is compatible with Ford Focus models requiring a rear heated oxygen sensor. It is used to monitor oxygen levels in the exhaust stream, enabling the engine control unit to adjust fuel injection for optimal combustion. Installing the Delphi ES10910 can help address issues such as:

• 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 tests related to exhaust sensor performance

Installation Notes and Tips

When installing the Delphi ES10910 oxygen sensor on a Ford Focus, ensure the vehicle is cool to avoid burns. Use the included instruction sheet for proper wiring and torque specifications. Verify the square connector aligns correctly with the factory harness to prevent connection issues. It is recommended to inspect the exhaust threads and clean them before installation to ensure a secure fit. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES10910 part number 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. Refer to the product documentation for exact warranty terms.