Q&A

 Technician

Unfortunately there is not much of an answer that I think can be given at this point, with the amount of information that is supplied here. Fortunately, this is something that can be fixed. I would recommend taking the vehicle in for service as soon as possible for diagnosis, preferably to a shop that is proficient in dealing with the diagnosis of VW products.

 Master

Prestonfitz is right a scan tool attached to the diagnostic socket under the dash will most likely reveal what is wrong. The computer in your car is going to have relevant information stored in its memory which will help figure out what is going on. A scan tool is needed to retrieve this information. A professional grade scan tool allows key engine sensor data to be analyzed right off the scan tool without having to do intrusive testing at each sensor.

 Enthusiast

EPC refers to Electronic Pedal Control. Appears to be a problem with the throttle control switch. Switch may need to be replaced, recommend checking for fault codes to diagnose and verify problem.