Denso 234-4800 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Pontiac and Toyota Vehicles

The Denso OE Style 234-4800 oxygen sensor is designed specifically for select Pontiac and Toyota models, including the Corolla, Matrix, and Vibe. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated sensor type for faster response times
• Specific fit for Pontiac and Toyota Corolla, Matrix, and Vibe
• Threaded mounting type with 0.708 thread diameter
• Four-wire design with male connector for secure connection
• Wiring harness length of 14.76 inches for proper installation

About the Denso OE Style Product Line

The OE Style line from Denso offers oxygen sensors engineered to meet original equipment specifications. This ensures compatibility and reliable performance for vehicles requiring precise emissions control components. The 234-4800 sensor maintains factory standards for fit and function, making it a suitable replacement part for your Pontiac or Toyota vehicle.

Detailed Product Description

The Denso 234-4800 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its four-wire configuration supports both the sensor signal and heater circuit, while the male connector ensures a secure and proper electrical connection. The threaded mounting type with a 0.708-inch diameter allows for straightforward installation in the exhaust system. With a wiring harness length of 14.76 inches, this sensor fits well within the engine bay layout of the specified vehicles.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for engine control
• Helps resolve check engine light codes related to oxygen sensors
• Improves fuel economy by providing precise emissions data
• Reduces harmful exhaust emissions for compliance with regulations
• Prevents rough idling and engine performance issues caused by faulty sensors

Installation Notes and Tips

When installing the Denso 234-4800 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 0.708-inch threaded sensor to prevent damage. Verify the wiring harness length of 14.76 inches is sufficient for your vehicle’s routing. Confirm the male connector aligns properly with the vehicle’s wiring harness to ensure a secure connection. Follow manufacturer torque specifications to avoid sensor damage.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. The OE Style 234-4800 sensor undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship to provide confidence in your replacement part.