Delphi ES20052 Oxygen Sensor - Front Left, Front Right, Left or Right

Delphi ES20052 Heated Oxygen Sensor Overview

The Delphi ES20052 oxygen sensor is designed for precise emission control in select Acura models. This heated sensor ensures accurate air-fuel mixture readings, supporting optimal engine performance and reduced emissions for vehicles like the Acura Legend, NSX, RL, and TL.

• Heated oxygen sensor for faster warm-up and accurate readings
• 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 specified Acura models
• Overall length of 580 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Position-specific fitment: front left, front right, left, right

Technical Details and Compatibility

The Delphi ES20052 oxygen sensor features a heated sensor type that accelerates the sensor’s readiness after engine start, improving emission control efficiency. Its 4-wire configuration supports both the sensor signal and the integrated heater circuit, ensuring consistent performance. The square connector shape is designed to match factory wiring harnesses on Acura Legend, NSX, RL, and TL models, simplifying installation. With a thread size of 18 x 1.5 mm and an overall length of 580 mm, this sensor fits precisely in the designated exhaust ports, maintaining proper sensor positioning and function.

Common Applications and Problem Resolution

• Helps resolve check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing accurate air-fuel ratio data
• Reduces harmful emissions by enabling proper catalytic converter operation
• Addresses rough idling or engine hesitation caused by faulty sensors
• Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

When installing the Delphi ES20052 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the included instruction sheet for guidance on sensor orientation and torque specifications. Verify the sensor’s connector matches the factory harness to prevent electrical issues. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Position-specific installation is critical; confirm the sensor is installed in the correct front left, front right, left, or right location as required by your Acura model.

Quality Assurance and Warranty

Delphi oxygen sensors undergo rigorous testing to meet OEM standards for durability and performance. The ES20052 part number is backed by Delphi’s quality assurance processes, ensuring reliable operation in emission control systems. Warranty coverage details should be confirmed at the point of purchase, typically including protection against manufacturing defects for a specified period.