The engine P2055 DTC reports about a sensor problem and this problem can be solved by the replace of the sensor what is improbable to resolution the fundamental problematic. The problem is the most likely to be instigated by the method that the car engine sensor is monitoring, but it might level be caused by the cabling to the sensor itself. The leak discovery pump is portion of the evaporative releases method. This system tests the fuel system to confirm it is not leaking fuel vapors into the air. The structure pulls a emptiness on the fuel method and holds it for a dated of time.