Denso 234-3004 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Chevrolet, Geo, GMC, and Pontiac Vehicles

The Denso OE Style 234-3004 oxygen sensor is designed specifically for select Chevrolet, Geo, GMC, and Pontiac models, including the Sunrunner and Tracker. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated sensor type for faster response times
• Specific fit for Chevrolet, Geo, GMC, and Pontiac Sunrunner and Tracker models
• Threaded mounting type with 0.708 inch thread diameter
• 15.43 inch wiring harness length with 3 wires and male connector
• Part number 234-3004 for precise identification and compatibility

About the Denso OE Style Product Line

The OE Style line from Denso offers oxygen sensors engineered to meet original equipment specifications. This ensures that the 234-3004 sensor provides reliable performance and fitment comparable to factory-installed parts. The OE Style sensors are designed to maintain proper emissions control and engine efficiency for the vehicles they serve.

Detailed Product Description

The Denso 234-3004 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel mixture readings and reducing emissions during cold starts. Its specific fitment for Chevrolet, Geo, GMC, and Pontiac Sunrunner and Tracker models guarantees proper installation and function. The sensor includes a 15.43 inch wiring harness with three wires and a male connector, facilitating straightforward connection to the vehicle’s wiring system. The threaded mounting type with a 0.708 inch diameter ensures secure attachment in the exhaust system.

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance problems such as rough idling or hesitation
• Failed emissions tests related to sensor failure

Installation Notes and Tips

When installing the Denso 234-3004 oxygen sensor, ensure the vehicle is compatible with this specific part number and fitment. Use proper tools to avoid damaging the threaded mounting. Verify the wiring harness length and connector type match the vehicle’s harness to ensure a secure electrical connection. It is recommended to replace the sensor when the engine is cool to prevent burns and to apply anti-seize compound on the threads if not pre-coated.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details may vary, Denso parts typically come with a limited warranty covering defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing your vehicle’s oxygen sensor.