Hi guys. Im baffled with a problem im having on my volvo s40 2005. About a week ago i was driving and the car shut off. Now this isnt the first time its done that. Ive done a tune up on it. I scanned for codes and get a p0300. The car will start up then cut off if you try to raise the rpms. Im thinking maybe the schematic for the coil on plugs might be incorrect and mixed up. Ill pull plugs tomorrow and check the condition. Anyone has ever had this problem?