Denso 234-4623 Oxygen Sensor - Downstream or Upstream

Reliable Oxygen Sensor for Lexus, Toyota, Pontiac, and Scion Vehicles

The Denso OE Style Oxygen Sensor 234-4623 is designed to provide precise emissions control for specific vehicle models including Lexus GS300, Toyota Camry, and Pontiac Vibe. This heated oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and reduce emissions.

• Heated sensor type for faster response times
• Specific fit for Lexus, Toyota, Pontiac, and Scion models
• Threaded mounting type with 0.708 inch thread diameter
• Four-wire design with male connector for secure connection
• 23.23 inches wiring harness length for proper installation

Detailed Features of the Denso OE Style Oxygen Sensor 234-4623

This oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response and fuel efficiency. The four-wire configuration supports both sensor signal and heater power, ensuring reliable operation. The threaded mounting type with a 0.708 inch diameter provides a secure and precise fit in the exhaust system. With a wiring harness length of 23.23 inches, this sensor is designed for easy routing and connection in the engine bay. The male connector ensures compatibility with factory wiring harnesses on specific vehicle models.

OE Style Product Line Overview

The Denso OE Style product line focuses on delivering original equipment quality and fitment. This line is engineered to meet or exceed OEM specifications, providing a direct replacement for factory-installed parts. The OE Style oxygen sensor 234-4623 maintains the integrity of the vehicle’s emissions system and supports compliance with environmental regulations.

Compatible Vehicles and Common Applications

• Lexus GS300, GS400, GS430, GS460, ES300
• Toyota Camry, Celica, Matrix, Prius, Sienna, Supra
• Pontiac Vibe
• Scion xD

This sensor is used to monitor oxygen levels in the exhaust gases, helping the engine control module adjust fuel injection for efficient combustion. It addresses issues such as:

• Check engine light related to oxygen sensor faults
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Rough engine idle or hesitation during acceleration
• Engine performance problems linked to sensor malfunction

Installation Notes and Tips

When installing the Denso 234-4623 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use anti-seize compound on the sensor threads if not pre-applied to prevent seizing. Verify the connector gender matches the vehicle harness for a secure fit. Follow vehicle-specific torque specifications to avoid damage to the sensor or exhaust components.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship to provide confidence in the product’s reliability.