Delphi ES20356 Oxygen Sensor - Rear

Delphi ES20356 Heated Oxygen Sensor Overview

The Delphi ES20356 is a heated oxygen sensor designed for precise emission control in select Acura and Honda vehicles. Engineered to meet OEM specifications, this sensor ensures accurate air-fuel mixture readings for optimal engine performance and reduced emissions.

• Heated sensor type for faster warm-up and improved efficiency
• 4-wire design for reliable signal and heater circuit
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with rear exhaust ports
• Overall length of 350.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for rear exhaust placement on compatible vehicles

Technical Details and Compatibility

The Delphi ES20356 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 configuration supports both the sensor signal and the heating element, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size are designed to fit securely in the rear exhaust position of Acura and Honda models, specifically the Civic and ILX. With an overall length of 350.0 mm, this sensor fits precisely to maintain proper exhaust flow and sensor accuracy.

Common Applications and Problem Resolution

• Helps resolve check engine light codes related to oxygen sensor failure
• Improves fuel efficiency by providing accurate air-fuel ratio data
• Reduces harmful emissions by ensuring proper catalytic converter function
• Addresses rough idling or engine hesitation caused by faulty sensors
• Prevents failed emissions tests due to sensor malfunctions

Installation Notes and Tips

When installing the Delphi ES20356 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the included instruction sheet for proper wiring and torque specifications. Confirm the sensor is installed in the rear exhaust position as specified for Acura Civic and Honda ILX models. Avoid over-tightening the 18 x 1.5 mm threaded sensor to prevent damage. It is recommended to inspect the wiring harness and connector for corrosion or damage before installation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The ES20356 part number undergoes rigorous testing to ensure durability and accurate sensor readings. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product reliability.