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Fault code P2405
This OBD fault code is applicable to all automobile manufacturers' models: P2405. Inductive circuit of leak detection pump for fuel evaporative emission system. Inductive circuit of leak detection pump in evaporative emission system. Low category: emission control. Detailed meaning: Evaporative emission (EVAP) system introduces gasoline vapor from fuel tank to storage tank filled with activated carbon, which can absorb gasoline vapor. Then, the engine will use fresh air to blow gasoline vapor into the engine combustion chamber. The function of the leak diagnosis module is to apply less pressure to the evaporative emission (EVAP) system and the fuel system through the leak detection pump (LDP), and then detect whether there is a leak in the system to ensure that no harmful steam escapes into the atmosphere.