Citroen Peugeot 307/206/406 Oxygen Sensor 0258006026 145CM Cable Length Replacement for 0258986615

Citroën/Peugeot 307, 206, 406 dedicated oxygen sensors OEM 0258006026, replacement for 0258986615 with 145 cm cable; monitors exhaust oxygen and feeds ECU to adjust air-fuel ratio; resolves high fuel consumption, weak acceleration, and excessive emissions. If check engine light is on, idle is unstable, or fuel consumption increases, sensor aging is likely; replacement restores power and fuel economy.