Delphi ES20322 Oxygen Sensor - Front

Delphi ES20322 Heated Oxygen Sensor Overview

The Delphi ES20322 is a heated oxygen sensor designed for precise emission control in select Acura and Honda 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-wire design for fast response
• Square connector shape for secure and reliable connection
• Thread size of 18 x 1.5 mm for direct fitment
• Overall length of 375.0 mm for proper installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for front placement in the exhaust system

Technical Details and Compatibility

The Delphi ES20322 oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response time and reducing emissions during cold starts. Its 4-wire design supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape provides a secure fit to the vehicle’s wiring harness, minimizing the risk of disconnection or electrical issues. With a thread size of 18 x 1.5 mm and an overall length of 375.0 mm, this sensor is engineered for direct replacement in the front position of compatible exhaust systems.

This oxygen sensor is compatible with various Acura and Honda models, including the Accord, Civic, Civic del Sol, CL, Integra, and Odyssey. The part number ES20322 ensures you receive the correct sensor for these specific vehicles, maintaining factory specifications and emission standards.

Common Applications and Problem Resolution

• Helps resolve rough idling and engine hesitation caused by faulty oxygen sensors
• Reduces increased fuel consumption due to inaccurate air-fuel mixture readings
• Addresses check engine light triggers related to oxygen sensor faults
• Improves emission control system performance for compliance with environmental regulations
• Prevents damage to catalytic converters by maintaining proper exhaust gas composition

Installation Notes and Tips

When installing the Delphi ES20322 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use the included instruction sheet for guidance on proper torque specifications and connector engagement. Verify the sensor’s position at the front of the exhaust system for accurate readings. It is recommended to inspect the wiring harness and connector for damage before installation to ensure reliable operation.

Quality Assurance and Warranty

Delphi manufactures the ES20322 oxygen sensor to meet OEM standards for durability and performance. Each sensor undergoes rigorous testing to ensure accurate emissions readings and long service life. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product reliability.