My tach stopped working on me the other day and I've heard that it's probably DIS related. I just put the car back together after dropping a new motor in it, I used the clear dielectric grease on the connecting surface of the DIS and assumed it was grounded. Apparently these modules have overheating problems and I don't want to continue burning them up. What should I do differently with the new one that I have to go out tomorrow and buy? Should I add a couple more grounds like to the engine and body?