Hey Hoping someone can give me some good advice. My PUG 406 has a slight misfire. (406 2.0 16v EW10J4) Noticeable on startup after standing overnight. Error code P0350 ever so often. Once it's warmed up it goes away but if I tap my foot quickly on the accelerator then there is still a lag on the motor before revving up and then you can feel the misfire. It drives OK but sometimes I feel she could have more power. I would like to get the problem sorted out. Would I be correct in presuming it could be a dirty fuel injector? Is a bottle of "injector cleaner" a waste of time? Thanking in advance!