I've been battling this problem for two winters now. Car will not idle in cold weather <35 degrees. It will idle fine up until the scanmaster shows coolant at 32 degrees then it just dies out on me. It doesn't stumble or anything just dies out like I turned the car off. Between 32-55 degrees it will continue to die unless I sit there and apply the gas pedal. After I restart it, the IAC counts will be around 180 and stay there until the temp gets up to around 130 (even when i'm driving). After 55 degrees it runs smooth. It doesn't matter what gear it's in. I have adjusted & cleaned the IAC and TPS but still dies out. I'm thinking the IAC is bad but how would I test it? I'm also thinking I need a new chip. Any insight on this? I have searched but didn't find anything useful.