My camaro 2000 z28 does not start and idle properly in cold weather.
It starts, then hunts with rpm bouncing up and down, sometimes have to keep foot on the gas to get it to start running OK ..Ive changed temp sensor switch and also Idle air control valve, also disconnected battery and tried to reset computer....and any help appreciated..thx

 

Check fuel pressure so you can check it off the list as its one of the easier things to do. The two starting / idle issue I’ve experienced have both been pump related.