I live in Iowa, the last 2 mornings have been cool (30's). The car starts fine and will drive a very short distance then it dies. I have to give it gas to get it to start.Yesterday it took several starts to finally be able to go then it ran fine. this morning it died right at my house, I again had to restart it several times and finally after letting it idle several minutes it was o.k. After starting it seems to idle fine? Any idea on the problem?