Autopart International 1900-522202 Upstream Air Fuel Ratio Sensor

The Autopart International 1900-522202 is an upstream air fuel ratio sensor designed as a direct-fit replacement for select Honda Accord models. This sensor plays a critical role in monitoring the air-to-fuel mixture entering the engine, transmitting real-time data to the vehicle's engine control unit (ECU) to optimize combustion efficiency, fuel economy, and emissions performance.

Key Features:

• Direct-fit replacement sensor for precise installation
• Monitors air-fuel mixture ratio for optimal engine performance
• Helps maintain proper fuel economy and reduce emissions
• Upstream (pre-catalyst) sensor location
• Designed for 2.4L 4-cylinder applications
• OE-quality construction for reliable operation

Air fuel ratio sensors work similarly to oxygen sensors but provide more precise measurements across a wider range of air-fuel ratios. A failing sensor can trigger check engine lights, cause poor fuel economy, rough idle, and increased emissions. This replacement sensor restores proper engine management system functionality.