Delphi ES10377 Oxygen Sensor

Delphi ES10377 Heated Oxygen Sensor Overview

The Delphi ES10377 is a heated oxygen sensor designed for precise emission control in select Nissan and INFINITI vehicles. Engineered with a flat connector and three-wire configuration, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated sensor type for faster warm-up and accurate readings
• Three-wire design with flat connector shape for reliable electrical connection
• Thread size of 18 x 1.5 mm for secure fitment
• Overall length of 600 mm to accommodate various installation positions
• Compatible with front, front left, front right, left, and right positions
• Includes oxygen sensor and instruction sheet for installation guidance

Detailed Product Description

The Delphi ES10377 oxygen sensor is a critical component in the emission control system, designed to monitor oxygen levels in the exhaust gases of Nissan and INFINITI vehicles such as the 200SX, 300ZX, J30, and Q45. Its heated sensor element allows for quicker activation after engine start, improving fuel efficiency and reducing emissions. The sensor’s three-wire configuration supports both signal and heater circuits, while the flat connector shape ensures a secure and corrosion-resistant electrical connection. With a thread size of 18 x 1.5 mm and an overall length of 600 mm, this sensor fits multiple front and side positions, providing flexibility for various exhaust system layouts.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by incorrect oxygen sensor readings
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate feedback to the engine control unit
• Addresses rough idling and poor acceleration linked to faulty oxygen sensors

Installation Notes and Tips

When installing the Delphi ES10377 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use the correct 18 x 1.5 mm thread size to avoid cross-threading. Verify the sensor position matches the vehicle’s specified location—front, front left, front right, left, or right—to ensure accurate readings. Follow the included instruction sheet carefully for wiring and connector alignment. Avoid over-tightening to prevent damage to the sensor or exhaust manifold.

Quality Assurance and Warranty

Delphi manufactures the ES10377 oxygen sensor to meet OEM specifications for durability and performance. While specific warranty details are not provided, Delphi products typically undergo rigorous testing to ensure reliability in emission control applications for Nissan and INFINITI vehicles. Using this sensor helps maintain compliance with emission standards and supports long-term engine health.