ok so when i cold start my car it turns over but its a low rpm's and sounds like its about to die. Also one time i tried to start it and it drained my battery. I took it to autozone and they scanned my car and it wasn't throwing codes.They tested my alternator , battery and starter and they said it was good. Any ideas on why my car won't start some times??? Thanx in advance

 

Do you have an after market stereo system that could be drawing off your battery?

 

Had the same issue a couple weeks ago. New properly gapped plugs and new wires and it's a new car. The emphasis in the symptoms you're describing is "Cold start" I also noticed the problem if it was super damp in the morning. Hope that does it for you!

Thanks,

Tom