So I drive a 2009 Chevy Malibu it did sit last winter ugh..Well about 2 weeks ago my cars check engine light turned off as we put the new thermometer in. Now he told us there needs to be more miles on it, just drive don't let it idle and take right off for about 15 miles and back 15 miles so I did that 4x already. He told me to do this Wednesday and to come back in Friday. This is what it failed for last time cold start..then the check engine popped on it was a part we fixed then came on again as we were putting the 2nd part in came on shut off twice this is the longest its been off by itself. I'm going today but I have a feeling its going to be that cold start again..I've been driving it everywhere. I'd get a new car but I spent allot of money on this one with PARTS please help.