Here is some more information on the fault and a video showing how to fix it (Google AI search of fault code P0002) P0002 is an OBD-II diagnostic trouble code for a fuel volume regulator control circuit range/performance issue, indicating the engine control unit (ECU) has detected a problem with the fuel volume regulator. This can be caused by a faulty fuel pump, regulator, or a problem with wiring, connectors, or a clogged fuel filter. Symptoms often include a illuminated check engine light, poor engine performance, and the vehicle entering "limp mode".