Went to the in-laws this afternoon and everything was fine, the outside temperature was about 1 degree celcius - about 1/4 tank of gas.
Came out tonight (about 6 hours later) started it up, and the check engine light was on. The temperature had dropped to -1 celcius (-7 windchill)
I checked the gas cap, oil and coolant levels, and all were fine.
I filled the gas tank up, and the check engine light was still on.
I'm guessing something temperature/condensation related.
Dealer doesn't re-open until Saturday, so I'll have to wait until then to get it on a scanner.
Any ideas on what might be the cause?
Thanks...Brad