Ok my ek9 is having massive missfire and Big power loss at th 2000-3800 rpm range only at moderate to half throttle,i open the throttle more than half to WOT then power hits all of the sudden,check engine ligth is on,ok first,anybody knows what migth be the problem,TPS?also i unplug the tps and it dont missfires anymore,only power loss, ,can anybody tell me how to jump the plug to read codes,can,t find how to do it...need help im frustrated..