help please and help me figure our my problem...when I drive and I put it in neutral or if I just press in my clutch and its just rolling my RPM jumps up and down from close to my car dieing out and jumping back from 1 1/2...and when I race and press my clutch in or put it on neutral my RPM just go all the way down and my car just shuts off...what the problem...please help...my car it messed!!!!!