Delphi ES20220 Oxygen Sensor - Center, Rear, Rear Left or Rear Right

Delphi ES20220 Heated Oxygen Sensor Overview

The Delphi ES20220 is a heated oxygen sensor designed for precise emission control in select Nissan and Infiniti 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 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 380.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Position-specific fitment: center, rear, rear left, and rear right

Detailed Product Description

The Delphi ES20220 oxygen sensor is engineered to meet the emission control requirements of various Nissan and Infiniti models, including the 350Z, Altima, FX35, FX45, G35, M35, M45, Maxima, Murano, Q45, Quest, and Sentra. Its heated sensor type allows for faster warm-up times, improving sensor responsiveness and reducing emissions during cold starts. The 4-wire design 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 and precise fit, while the 380 mm overall length accommodates proper sensor placement in the exhaust system. This oxygen sensor is position-specific, suitable for center, rear, rear left, and rear right locations depending on the vehicle's configuration.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel ratio for efficient combustion
• Reduces engine misfires caused by incorrect oxygen readings
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate sensor data
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

• Ensure the sensor is installed in the correct position as specified for your vehicle model
• Use the included instruction sheet for proper torque and wiring connections
• Verify thread size compatibility (18 x 1.5 mm) before installation
• Disconnect the battery before sensor replacement to avoid electrical issues
• Inspect wiring harness and connectors for damage prior to installation

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20220 part number undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product quality.