I have had my 2013 Impreza Sport Premium with CVT for 4 wks now. Recently the temps have gotten into the teens/twenties at night. My Impreza is kept in the garage. I have found it hard to start in the morning. The dash lights up but the car will not turn over. I turn the key back, wait a few secs and try again and it will turn over but rather reluctantly. It rough idles after start up too. I do not have my foot any where near the gas pedal. There is a strong smell of exhaust at idle too at this time. There is a bit of an incline in the garage so the nose of the car is a bit higher than the rest. Also I did finally have to fill up the tank right before this started happening.
Anyone else experience this? Anyone have a clue as to what this could be?