hey guys im new hear so bare with me,i just got a 1983 280zx N/A. theres a couple things wrong with the car first thing is my digital gas gauge does not work it seems like it has no power nothing is leed up and my temp gause ass well,the other thing is when the car is cold it turns on fine and about 10 to 15 min it starts back firing and then turns off and about 30 min later it turns on fine and when it get hot it dies againg, if any body can help me with this i would really appreciated thanks.