Delphi ES20073 Oxygen Sensor - Rear

Delphi ES20073 Heated Oxygen Sensor Overview

The Delphi ES20073 is a heated oxygen sensor designed for precise emission control in select Chevrolet, Geo, and Suzuki vehicles. Engineered with a 4-wire configuration and a square connector, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for reliable operation
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified models
• Overall length of 605.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for rear placement in the exhaust system

Technical Details and Compatibility

The Delphi ES20073 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving sensor response time and reducing emissions during cold starts. Its 4-wire setup supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size are engineered to fit rear oxygen sensor ports on Chevrolet Sidekick, Geo Tracker, Suzuki Vitara, and Suzuki X-90 models. With an overall length of 605.0 mm, this sensor is designed to fit precisely in the exhaust system without modification.

Applications and Problem Resolution

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensor readings
• Prevents increased emissions and failed emissions tests
• Addresses poor fuel economy linked to sensor malfunction
• Eliminates rough idling and hesitation due to incorrect sensor data

Installation Notes and Tips

When installing the Delphi ES20073 oxygen sensor, 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 vehicle harness to prevent connection issues. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Confirm the sensor is installed in the rear position as specified for the Chevrolet Sidekick, Geo Tracker, Suzuki Vitara, or Suzuki X-90.

Quality Assurance and Warranty

Delphi manufactures the ES20073 oxygen sensor to meet OEM standards for durability and performance. Each sensor undergoes rigorous testing to ensure accurate readings and heater functionality. 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.