Delphi ES20146 Oxygen Sensor

Delphi ES20146 Heated Oxygen Sensor Overview

The Delphi ES20146 is a heated oxygen sensor designed for precise emission control in select Chevrolet, Dodge, Mitsubishi, and Pontiac vehicles. Engineered with a 4-wire configuration and a square connector, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for fast response
• Square connector shape for secure and reliable connection
• Thread size of 18 x 1.5 mm for proper fitment
• Overall length of 480.0 mm for versatile installation
• Includes oxygen sensor and instruction sheet
• Compatible with front and rear positions on multiple vehicle models

Technical Details and Compatibility

The Delphi ES20146 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving emission control efficiency. Its 4-wire setup supports both sensor heating and signal transmission, enhancing durability and accuracy. The square connector shape ensures a secure fit with factory wiring harnesses, while the 18 x 1.5 mm thread size matches OEM specifications for straightforward installation. With an overall length of 480 mm, this sensor fits various mounting locations including front left, rear right, and other positions depending on the vehicle.

This sensor is compatible with several models including the Chevrolet Aveo and Aveo5, Dodge Stealth, Mitsubishi 3000GT, Diamante, G3, Mirage, and Montero, as well as Pontiac models. The part number ES20146 should be referenced to confirm exact fitment for 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 efficiency by providing accurate oxygen level data
• Reduces engine hesitation and stalling issues
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Before installation, verify the part number ES20146 matches your vehicle’s requirements. Use proper tools to avoid damaging the sensor or threads. Ensure the connector is securely attached to prevent signal interruptions. It is recommended to replace oxygen sensors in pairs when applicable to maintain balanced engine performance. Follow the included instruction sheet for detailed installation guidance.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20146 undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects. Consult product documentation or your supplier for exact warranty terms.