Delphi ES20088 Oxygen Sensor - Front, Rear or Rear Right

Delphi ES20088 Heated Oxygen Sensor Overview

The Delphi ES20088 is a heated oxygen sensor designed for precise emission control in select GM and related vehicles. Engineered with a 4-wire configuration and a triangle-shaped connector, this sensor ensures accurate oxygen level readings for optimal engine performance and reduced emissions.

• Heated oxygen sensor with 4 wires for fast response
• Triangle-shaped connector for secure fitment
• Thread size: 18 x 1.5 mm for direct replacement
• Overall length of 400 mm for proper installation
• Includes oxygen sensor and instruction sheet
• Compatible with front, rear, and rear right positions depending on vehicle

Technical Details and Compatibility

The Delphi ES20088 oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving fuel efficiency and emission control. The 4-wire design supports both the sensor signal and heater circuit, ensuring reliable operation. Its triangle-shaped connector and 18 x 1.5 mm thread size provide a precise fit for installation in various positions such as front, rear, or rear right, depending on the specific vehicle application.

This sensor is compatible with a range of makes and models including Buick LaCrosse, Cadillac Escalade, Chevrolet Silverado 1500, GMC Sierra 2500, Hummer H3, Isuzu i-290, Pontiac G6, Saab 9-7x, and Saturn Aura among others. The Delphi ES20088 is designed to meet the exact specifications required for these vehicles, ensuring proper emission system function.

Common Applications and Problem Resolution

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensor readings
• Prevents increased emissions and failed emissions tests
• Addresses poor fuel economy linked to sensor malfunction
• Eliminates rough idling and hesitation during acceleration

Installation Notes and Tips

When installing the Delphi ES20088 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct 18 x 1.5 mm thread size to avoid cross-threading. Verify the sensor position (front, rear, or rear right) matches your vehicle’s requirements. Connect the triangle-shaped connector securely to prevent electrical issues. Follow the included instruction sheet for torque specifications and wiring details.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20088 undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.