欧宝Astra氧传感器 55561452 93189215 直接安装提升性能

When Opel/Astra experiences idle instability, noticeably higher fuel consumption, or check engine light is on, it is typically an indicator of aging oxygen sensor failure; sensor no longer accurately monitors exhaust oxygen content. In normal operation, the sensor continuously feeds ECU with air-fuel ratio data to ensure complete combustion and reduced emissions. This sensor fits Opel Astra; OEM numbers 55561452, 93189215, 93185456; direct replacement for original parts. Installation must be done with engine cold; handle with care to avoid thread damage; recommended tightening torque 40-50 Nm; ensure connector is fully locked.