hi all i am new to this site , where do i start with my x,type ?, ok when i,m driving for awhile all of the lights flash up on my dash, rev needle and speedo needle will go back to 0,mph, i lose my temp reading too, sometimes it will only happen for a few sec,s other times uptill 5,mins, when i turn the car off and try to start it right away nothing don,t even turn over !, if i leave it for a bit most times 20,mins it will start no probs but engine mangaent light stays on for a few hours, had it plugged it and nothing is coming up,,, please help ???