Delphi ES10394 Oxygen Sensor - Front or Rear

Delphi ES10394 Oxygen Sensor Overview

The Delphi ES10394 oxygen sensor is designed for precise emission control in select Toyota vehicles. This non-heated sensor features a 2-wire configuration and a square connector shape, ensuring compatibility and reliable performance for models like the Toyota Celica, Paseo, RAV4, and Tercel.

• Non-heated oxygen sensor type for accurate air-fuel mixture readings
• 2-wire design with a square connector for secure electrical connection
• Thread size of 18 x 1.5 mm for proper fitment
• Overall length of 300.0 mm to match OEM specifications
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front and rear positions depending on vehicle requirements

Detailed Product Description

The Delphi ES10394 oxygen sensor is engineered to meet the emission control needs of Toyota vehicles such as the Celica, Paseo, RAV4, and Tercel. Its non-heated sensor type uses a 2-wire setup, which is typical for certain OEM applications where a heated sensor is not required. The square connector shape ensures a secure and correct electrical connection, reducing the risk of sensor failure due to poor contact. With a thread size of 18 x 1.5 mm and an overall length of 300.0 mm, this sensor is designed to fit precisely in the designated mounting locations, whether front or rear, as specified for your vehicle model. The package includes the oxygen sensor itself along with an instruction sheet to assist with proper installation.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel ratio for efficient engine performance
• Reduces harmful emissions by providing accurate oxygen level data to the ECU
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel economy by enabling precise fuel mixture adjustments
• Prevents engine misfires and rough idling caused by faulty sensor readings

Installation Notes and Tips

• Verify sensor position (front or rear) based on your Toyota model’s specifications
• Use proper tools to avoid damaging the 18 x 1.5 mm threaded fitting
• Ensure the square connector is fully seated to prevent electrical issues
• Follow the included instruction sheet carefully for torque specifications and wiring guidance
• Inspect wiring harness and connectors for damage before installation

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict OEM standards for durability and performance. The ES10394 part number undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product quality.