Delphi ES20227 Oxygen Sensor - Front Left, Front Right, Rear Left or Rear Right

Delphi ES20227 Heated Oxygen Sensor Overview

The Delphi ES20227 is a heated oxygen sensor designed for precise emission control in select Hyundai and Kia 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 730 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front left, front right, rear left, and rear right positions

Technical Details and Compatibility

The Delphi ES20227 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 configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size provide a secure fit in the exhaust system. With an overall length of 730 mm, this sensor fits properly in the exhaust ports of Hyundai and Kia models including the Amanti, Optima, Santa Fe, Sonata, Sorento, Sportage, Tiburon, Tucson, and XG350. The sensor is suitable for installation in all four primary oxygen sensor positions: front left, front right, rear left, and rear right.

Common Applications and Problem Resolution

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires and rough idling caused by faulty sensors
• Prevents increased emissions and failed emissions tests
• Addresses poor fuel economy linked to inaccurate oxygen sensor readings
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20227 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the included instruction sheet for guidance on sensor positioning and torque specifications. Verify the connector shape matches the vehicle harness to prevent connection issues. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Confirm sensor placement corresponds to the correct exhaust port position (front or rear, left or right) for proper operation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM specifications for durability and performance. The ES20227 part number undergoes rigorous testing to ensure reliable emission control and sensor accuracy. This product typically includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term functionality.