沃尔沃C30 2007-2010 前氧传感器 30677175 燃油空气混合控制

Volvo C30 (2007–2010) with idle instability, sudden fuel consumption rise, or check engine light on, or power loss on acceleration and black exhaust smoke, usually indicates front oxygen sensor aging or failure, which cannot accurately monitor exhaust oxygen content. Work correctly, it continuously feeds the ECU with air-fuel ratio signals to help the system adjust fuel injection accurately, ensuring efficient combustion and reduced emissions. OEM number 30677175; fits all 2007–2010 Volvo C30 models. Use a dedicated socket to remove the old part; clean the exhaust manifold interface before installation; torque to specification to prevent leaks and erroneous readings.