Hi guys it's been a while since my last post !! But my cars just started running a bit strange.. It sounds like its running on 3 cylinders but it only does it now and again..sometimes I can blip the throttle and it stops and runs loverly again,,but the other times it stays !! To the extent that I have to pull over !! Soon as the cars not run for a bit the problem goes !! But as I said it don't do it all the time !! I've had it scaned and no faults came up !! I'm scratching my head guys please help me !!