Denso 234-3028 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Saab, Volkswagen, and Volvo Vehicles

The Denso OE Style 234-3028 oxygen sensor is designed to provide precise emissions control for specific Saab, Volkswagen, and Volvo models. Engineered with a heated sensor element and a threaded mounting type, this oxygen sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor for faster response times
• Specific fit for Saab 740, 745, 900, 9000, Volkswagen Vanagon, and select Volvo models
• Threaded mounting type with 0.708 thread diameter for secure installation
• 26.81-inch wiring harness length with 3 wires and male-female connector
• Part number 234-3028 for precise identification and compatibility

Detailed Product Description

The Denso OE Style 234-3028 oxygen sensor features a heated sensor type that allows it to reach operating temperature quickly, improving emissions control and fuel efficiency. This sensor is designed with a 26.81-inch wiring harness and a 3-wire configuration, including male and female connectors, ensuring a reliable electrical connection. The threaded mounting type with a 0.708-inch thread diameter provides a secure fit in the exhaust system. This oxygen sensor is a specific fit for several Saab models including the 740, 745, 900, and 9000, as well as the Volkswagen Vanagon and select Volvo vehicles, making it a precise replacement part for these applications.

The OE Style product line from Denso focuses on delivering original equipment quality and fitment, ensuring that this oxygen sensor meets the exact specifications required by vehicle manufacturers. This line is designed to provide a direct replacement that maintains the performance and reliability expected from factory-installed components.

Common Applications and Issues Addressed

• Helps resolve poor fuel economy caused by inaccurate oxygen sensor readings
• Addresses rough engine idle and hesitation due to faulty sensor signals
• Reduces emissions by providing accurate air-fuel mixture data to the engine control unit
• Prevents check engine light triggers related to oxygen sensor faults
• Improves overall engine performance and drivability

Installation Notes and Tips

Ensure the vehicle is cool before attempting installation to avoid burns. Use appropriate tools to remove the old sensor and install the new Denso 234-3028 oxygen sensor with the correct torque to prevent damage. Verify the wiring harness length and connector type match the vehicle’s specifications for a proper fit. It is recommended to inspect the exhaust system for leaks or damage during installation.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details for part number 234-3028 may vary, Denso products typically come with a limited warranty against defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.