Volkswagen Santana 2000 Oxygen Sensor 0258003611 Classic Old Car Power Recovery

Volkswagen Santana 2000 oxygen sensor 0258003611; designed for classic cars; installed on exhaust manifold or upstream pipe; real-time monitoring of exhaust oxygen and feedback to ECU to precisely control air-fuel ratio; restores optimum engine operation. Fits Santana 2000 and some platform-mates; installation difficulty medium; labor 0.5-1 hour; clean threads and apply anti-seize. If idle unstable, fuel consumption high, acceleration weak, or exhaust out of spec, sensor aging is likely; replacement restores power.