My girlfriend has a 2000 VW Passat 4cyl 1.8T. She drives the vehicle everyday, in fact made a trip well over 400 miles last month. Yesterday, she's driving and all is fine. She parked (ignition off) and went into the store for 10min. When she came out and attempted to start the vehicle, it wouldn't start. She tried a few more times but nothing. She said the epc light came on and the check engine light. About 30-45 minutes later, I got there and the car started right up as if nothing ever happened and ran fine the rest of the day. The very next day, the problem resurfaced. I went 1/4 mile down the street and the car just lost power while i'm attempting to accelerate. It wouldn't start for about an hour:banghead:. I went to get check engine light check-up...it says nothing about EPC but shows trouble code p0411(Secondary Air Injection System Incorrect Flow Detected). The auto parts guy said that p0411 shouldn't cause my car to cut off or not start all together. Today, I went out and the vehicle won't crank at all!!!! What would cause this behavior? What should I do to fix it?