When i start the car, it doesn't start immediately and when it idles it misfires and it does not have the power that it usually have, last week i sent it to a mechanic for a diagnostic, it gave the code, P0351, Ignition Coil A Primary/ Secondary Circuit. When i bought the car it did not have a thermostat so last week i bought it and they installed it for me but after that the car started to over heat, and the fan kicks of so to compensate the part that's not working, i have since removed the thermostat and it's back to 80 degrees now but still not satisfactory, i want to get the rrot cause as why it doesn't want to use a thermostat