i have an 07 4x4 dakota 3.7 motor had misfire problem with the 4 and 2 cylinders so i changed the coil packs and the plugs i still had miss fires problems then i was told it may be fuel injectors so i changed those as well but i don't have the old code anymore but i have these new ones P2311 and P2317 can anyone help or steer me in the right direction.
