Delphi ES20216 Oxygen Sensor - Rear or Rear Left

Delphi ES20216 Heated Oxygen Sensor Overview

The Delphi ES20216 is a heated oxygen sensor designed for precise emission control in select Nissan and INFINITI vehicles. Engineered to meet OEM specifications, this sensor helps maintain optimal engine performance and reduce harmful emissions.

• Heated oxygen sensor with 4-wire design for accurate readings
• Square connector shape ensuring secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicle models
• Overall length of 360.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for rear or rear left placement depending on vehicle configuration

Technical Details and Compatibility

The Delphi ES20216 oxygen sensor features a heated element that allows for faster sensor activation and improved fuel mixture adjustments. Its 4-wire configuration supports both the sensor signal and heater circuit, enhancing responsiveness and durability. The square connector shape is designed to match factory wiring harnesses on compatible vehicles, ensuring a reliable electrical connection. With a thread size of 18 x 1.5 mm and an overall length of 360.0 mm, this sensor fits securely in the exhaust system, specifically for rear or rear left positions. This part is compatible with Nissan Altima, Nissan Sentra, and INFINITI G20 models, providing a direct replacement option for emission control systems.

Applications and Problem Resolution

• Helps correct inaccurate oxygen readings that cause poor fuel economy
• Addresses rough idling and engine hesitation related to faulty sensors
• Reduces increased emissions by maintaining proper air-fuel mixture
• Prevents check engine light triggers related to oxygen sensor faults
• Supports efficient catalytic converter operation by providing accurate data

Installation Notes and Tips

Before installation, verify the sensor position on your vehicle to ensure rear or rear left placement compatibility. Use appropriate tools to avoid damaging the sensor threads during removal or installation. It is recommended to disconnect the battery before replacing the oxygen sensor to prevent electrical shorts. Follow the included instruction sheet carefully for torque specifications and connector engagement. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The ES20216 part number undergoes rigorous testing to ensure durability and accurate performance under various operating conditions. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship. For exact warranty terms, refer to the product documentation or contact the vehicle manufacturer.