斯巴鲁森林人 2.0L 2007-2012 氧传感器 22690-AA970 原厂标准替换

Subaru Forester 2.0L (2007-2012) oxygen sensor OEM number 22690-AA970, also compatible with 22690-AA831. Uses the same zirconia sensor element and high-temperature resistant alloy housing; material and welding process meet OEM standards; life expectancy about 50,000–80,000 km under normal conditions. Function: monitor exhaust oxygen content and feed back to the ECU to optimize the air-fuel ratio, ensuring combustion efficiency and emissions. Replacement is moderate; use a dedicated socket to remove the old part; avoid thread stripping; recommended to operate with a cold engine.