Delphi ES20086 Oxygen Sensor - Rear, Rear Left or Rear Right

Delphi ES20086 Heated Oxygen Sensor Overview

The Delphi ES20086 is a heated oxygen sensor designed for precise emission control in select Lexus and Toyota 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 with a square connector shape for secure fitment
• Thread size of 18 x 1.5 mm compatible with specific rear positions
• Overall length of 820.0 mm to match factory installation requirements
• Includes oxygen sensor and instruction sheet for installation guidance
• Position-specific fitment: rear, rear left, and rear right

Technical Details and Compatibility

The Delphi ES20086 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, improving emission control accuracy shortly after engine start. Its 4-wire configuration supports both sensor signal and heater circuit, ensuring reliable data transmission to the engine control unit. The square connector shape and 18 x 1.5 mm thread size provide a secure and precise fit in the exhaust system. With an overall length of 820 mm, this sensor is designed for rear placement on compatible vehicles.

This oxygen sensor is compatible with various Lexus and Toyota models, including the Lexus GS300, IS300, SC400, and the Toyota MR2 Spyder. The part number ES20086 should be referenced to confirm fitment for rear, rear left, or rear right positions specific to your vehicle.

Common Applications and Problem Resolution

• Helps resolve rough idling caused by incorrect air-fuel mixture readings
• Addresses increased emissions and failed emissions tests
• Improves fuel economy by providing accurate oxygen level data
• Reduces engine hesitation and stalling issues related to faulty sensors
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20086 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the included instruction sheet for guidance on proper torque specifications and connector engagement. Verify the sensor’s position matches the rear, rear left, or rear right location as required by your Lexus or Toyota model. It is recommended to inspect the wiring harness and connector for damage before installation to ensure optimal sensor performance.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The ES20086 part number undergoes rigorous testing to ensure durability and accurate sensor readings under various operating conditions. This product typically includes a limited warranty covering defects in materials and workmanship. Refer to the product documentation for specific warranty details.