Delphi ES20194 Oxygen Sensor

Delphi Heated Oxygen Sensor for Lexus and Toyota Vehicles

The Delphi ES20194 oxygen sensor is designed to provide accurate emissions control for a range of Lexus and Toyota models. Featuring a heated sensor type and a 4-wire configuration, this oxygen sensor ensures reliable performance in monitoring exhaust gases.

• Heated oxygen sensor for faster warm-up and accurate readings
• 4-wire design for improved signal stability
• Square connector shape for secure and precise fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 275.0 mm for proper installation
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front and rear positions on multiple Lexus and Toyota models

Technical Details and Compatibility

The Delphi ES20194 oxygen sensor is engineered with a heated element to reduce the time it takes for the sensor to reach operating temperature, which is critical for accurate emissions monitoring. The 4-wire configuration supports both the sensor signal and the heating element, ensuring consistent performance. Its square connector shape and 18 x 1.5 mm thread size are designed to match OEM specifications, facilitating straightforward replacement.

This oxygen sensor is compatible with a variety of Lexus and Toyota vehicles, including the Lexus GS400, GS430, LS400, LS430, LS600h, LX470, LX570, SC400, SC430, GX470, and Toyota 4Runner, FJ Cruiser, Land Cruiser, Sequoia, Tundra models. It fits front, front left, front right, rear, rear left, and rear right positions depending on the vehicle application.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel mixture for efficient engine performance
• Reduces emissions by providing accurate exhaust gas readings
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring proper sensor feedback
• Prevents rough idling and engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Delphi ES20194 oxygen sensor, ensure the engine is cool to avoid burns. Use the included instruction sheet for guidance on proper torque specifications and connector alignment. Verify the sensor’s position matches the original location (front or rear) to maintain system accuracy. It is recommended to inspect wiring and connectors for damage before installation to ensure reliable operation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20194 part number undergoes rigorous testing to ensure compatibility and longevity in Lexus and Toyota vehicles. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product reliability.