When I turn on my car in the mornings for a few minutes it tries to turn off and runs rough but then after (2-5) it runs Okay.
This only happens when it is parked for like over 8 hours. It is more severe in cold weather.
I have replaced sparks, coils, and wires. Also I replaced the O2 sensor. A mechanic told me that it could be the thermostat temperature sensor. Your advise is appreciated.