I don't know how many people are using this tool, but when you first start your car and the Power FC is on what is your base reading? I keep showing a negative 4.5 (-4.5 kg/cm2). I wanted to know if this is normal or should it be higher/lower?

I can't really tell yet how to read this effectively. Anything would be greatly appreciated.

 

Cross posting is not needed. Closing this thread since you made one in the PFC section.