I have a 95 SE, Auto, 100K miles. Lately when I have been parking my Max in the driveway facing upward, I have a hard time starting it in the morning. The temps have been on the cold side lately, 25-35 degrees. I have not encountered this problem if I back into my driveway. Coincidence? It cranks fine, but just wont start unless I press the gas a little. I just put some fuel injector cleaner in the current tank of gas. First time using cleaner since I owned it, 40K miles. Anyone have a clue as to what might be the problem? Driveway is not that steep, fairly normal grade.

Thanks,