throght FPV was same? oh well so if I put a 12psi actuator on would I need a tune? went to ford today, 70 bucks to put on diagnosti and see what it says, he was pretty helpfull, said valve springs would do it all teh time, however not ruleing them out, could be coil but again not ruling that out, said if coil was f*cked would show up on diagnostic same as TPS said maybe vacum leak but yeah will be booking it in so then I can rule out teh basics, also could be faulty VCT sensor/s?