The engine P1885 Code is found for the test of the car engine but manually checking the car engine is also highly important. You should check the car engine aby following the car engine list and those are Throttle or Pedal Position Sensor or Switch A Circuit Intermittent, Injection Pump Fuel Metering Control ‘A’ High (Cam/Rotor/Injector) and Exhaust Gas Recirculation Sensor B Circuit High. The leak discovery pump is portion of the evaporative releases method. This method tests the fuel arrangement to confirm that is not leaking fuel gases into the air. The system pulls an air ton the fuel system and clasps it for a period of time.