Delphi ES20317 Oxygen Sensor - Center, Front or Rear

Delphi ES20317 Heated Oxygen Sensor Overview

The Delphi ES20317 is a heated oxygen sensor designed for precise emission control in select GM vehicles. Engineered with a 4-wire configuration and a flat connector shape, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for reliable signal and heater circuit
• Flat connector shape for secure and easy installation
• Thread size of 18 x 1.5 mm compatible with specified GM models
• Overall length of 310 mm to fit center, front, or rear positions as required
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES20317 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving sensor response time and reducing emissions during cold starts. Its 4-wire setup supports both the sensor signal and the integrated heater circuit, ensuring consistent performance. The flat connector shape facilitates a secure electrical connection, minimizing the risk of disconnection or signal loss. With a thread size of 18 x 1.5 mm and an overall length of 310 mm, this sensor is engineered to fit specific positions such as center, front, or rear locations depending on the vehicle's requirements.

This oxygen sensor is compatible with a range of General Motors vehicles including Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models. Notable compatible models include the Chevrolet Blazer, Camaro, Impala, Tahoe, and Silverado series, as well as Cadillac Escalade and CTS, Buick LeSabre, and Pontiac Grand Prix among others. The part number ES20317 ensures you receive the correct sensor for your vehicle's emission control system.

Common Applications and Problem Resolution

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensor readings
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate feedback to the engine control unit
• Resolves check engine light issues related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20317 oxygen sensor, ensure the engine is cool to avoid burns. Use the included instruction sheet for guidance on sensor positioning and connector attachment. Verify the thread size matches the vehicle’s exhaust port (18 x 1.5 mm) before installation. It is recommended to apply anti-seize compound on the sensor threads to facilitate future removal. Confirm the sensor’s position (center, front, or rear) according to your vehicle’s specifications to ensure proper operation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet or exceed OEM specifications for durability and performance. The ES20317 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. Refer to the product documentation or manufacturer for exact warranty terms.