My 98 Mystique (V6,50 K miles) failed to start a few weeks ago when the temp got to @ 5 deg, 24 hours later when the temp rose to the 20's it started and ran fine. This morning it was 9 deg and it would not start. I have good battery (It cranks strongly) but it does not even attempt to turn over. There is no CEL and in the few weeks in between the car ran fine with no idle problems and performance was fine. I put 2 cans of dry gas in thinking that it may have some water and have done extensive searches turning up some possibilities, MAF, Throttle Position sensors, Fuel filter, PCV Valve and IAC. Does this set of circumstances give you folks any ideas. Every time I think about taking it to my mechanic the problem goes away (It gets warmer). Thanks for any advice.