Delphi ES20019 Oxygen Sensor

Delphi ES20019 Heated Oxygen Sensor Overview

The Delphi ES20019 is a heated oxygen sensor designed for precise emission control in select Dodge, Hyundai, Mitsubishi, and Plymouth 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 for reliable signal transmission
• Round connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicle models
• Overall length of 755.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for front placement in the exhaust system

Technical Details and Compatibility

The Delphi ES20019 oxygen sensor features a heated element that accelerates sensor activation, reducing the time needed for the engine control unit to receive accurate oxygen level data. Its 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The round connector shape and 18 x 1.5 mm thread size are designed to fit front exhaust positions on vehicles such as the Dodge Colt, Hyundai Sonata, Mitsubishi Eclipse, Galant, Laser, Mirage, and Plymouth models. The sensor’s overall length of 755.0 mm allows for proper installation depth and secure mounting.

Applications and Problem Resolution

• Helps maintain optimal air-fuel ratio for efficient combustion
• Reduces engine misfires and rough idling caused by faulty oxygen sensors
• Supports emission system compliance by providing accurate exhaust gas readings
• Prevents increased fuel consumption due to incorrect sensor data
• Addresses check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20019 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use the included instruction sheet for proper wiring and torque specifications. Verify the round connector is fully seated and locked to prevent signal interruptions. It is recommended to inspect the sensor’s thread and mounting area for debris or damage before installation. Replacement should be performed on the front position of the exhaust system as specified for the vehicle model.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards and OEM requirements. The ES20019 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 Delphi’s warranty documentation for specific terms and coverage details.