日产阳光N16氧传感器 22690-4M500 / 22690-40U06 双编号通用

This oxygen sensor directly replaces Nissan original numbers 22690-4M500 and 22690-40U06; the two numbers are interchangeable and require no wiring changes after installation. It monitors exhaust oxygen content and sends signals to the ECU to adjust fuel injection for engine efficiency. Fits Nissan Sunny (N16) 1.5L and 1.8L engines. If idle is unstable, fuel consumption rises, acceleration is weak, or the check engine light is on, sensor aging is likely; replacement restores power, improves fuel economy, and meets emission standards.