Hey again just have a few questions. First I was wondering what the temp has to be on the thermostat so the light will light on my dash just so I know it works. Also took out my plugs last night and turned the engine over. The problem is the middle cylinder plug has weak spark. It has spark but Iam not sure if it is enough. Wiggled the wire a bit where it comes out of the middle coil and it seemed to get a little better. Any suggestions?