Ok i went out last night and pulled the gauge out and there was a black - and white+ for the lights and then three post for sensor,ignition hot and ground.So i added a ground to the ground post,tied it in to the ground for the lights and it seems to be working now.I took about a 5 mile trip out the road while ago stopping a couple of times and sitting still for a few min,and it never got over 115,which is about what my evo was reading so maybe mission accomplished,since yesterday in less than 5 miles it was up to bout 180.Thanks guys!!!!