Delphi ES20149 Oxygen Sensor - Rear

Delphi ES20149 Heated Oxygen Sensor Overview

The Delphi ES20149 is a heated oxygen sensor designed specifically for rear position installation on Dodge and Plymouth Neon models. This sensor helps maintain optimal engine performance and emissions control by accurately monitoring oxygen levels in the exhaust system.

• Heated sensor type for faster response times
• 4-wire configuration ensuring reliable signal transmission
• Round connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 820.0 mm for precise installation
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES20149 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 4-wire setup supports both the sensor signal and heater circuit, ensuring accurate data transmission to the vehicle’s engine control unit. The round connector shape and 18 x 1.5 mm thread size are engineered to fit the rear exhaust position on Dodge and Plymouth Neon models, providing a direct replacement for the original equipment sensor. With an overall length of 820.0 mm, this sensor is designed for proper reach and fit within the exhaust system.

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 ES20149 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the included instruction sheet for proper wiring and torque specifications. Verify the sensor’s connector matches the vehicle’s harness to avoid electrical issues. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Proper installation in the rear exhaust position is critical for accurate sensor performance.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The ES20149 part number undergoes rigorous testing for fit, form, and function on compatible Dodge and Plymouth Neon vehicles. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.