im in need of some advise, i brought the car a couple months ago she runs fine but occasionaly she missfires and looses power on pull away. i have had advise from a few garages includin mitsubishi themselves and was told to give it a full engine flush and oil change, new spark plugs, new coil pack, air filter, red x and injection cleaner has been put in it but shes still missin occasionaly. She has just had a diagnostic check and i was told that shes got a fault on the valve timing or a mechanical fault and that its missfiring on cylinder 3. But another garage has said that if the timing was out then she would miss fire on all 4 cylinders. I have contacted the previous owners and they said that they had a problem with it clogging up with carbon on the throttle body, he had it reconditioned about 18 months ago and was workin fine again. im at a loose end now as i dont want to spend out on replacing parts if its stil not going to cure the problem. can anyone advise me on what to do please