Could do with some help please, background, drove daughter 20 miles to catch train ,on return journey oil light came on, checked oil it was ok but added a splash and continued home, parked car and left it for two days. Checked the oil two days later and it was about the same( minus cooling ) about three quarters up the marks on dip stick. Went to start car and it will crank but not fire at all. As per suggestion from somewhere I changed the coolant sensor (£6 worth a try) but still no start up. Scanned the car with a cheap vag unit and the Only code it throws up is p0322 , where to next?