Porsche Cayenne S Oxygen Sensor 94860612902 Direct Replacement

When your Porsche Cayenne S shows MIL, idle instability, weak acceleration, or increased fuel consumption, this usually indicates aging or failed oxygen sensor. The sensor monitors exhaust oxygen content and feeds ECU to control air-fuel ratio for efficient combustion and reduced emissions. This is an original equipment replacement; OEM 94860612902; fits Porsche Cayenne S (2008-2010 4.8L V8) and some platform-mates. During installation, ensure engine is cold, carefully remove with a dedicated socket to avoid thread or wiring damage; after installation, use a diagnostic tool to clear fault codes and reset learning.