My car started to idle very low one morning when i started the and the engine started shaking. so I checked to see if my cables sparked, 1 and 4 are working but 2 and 3 did not. so i replaced the cables and spark plugs, same thing. ok so now i tested the coils and they all work but for sum reason the right coil isnt getting any power. now im stuck and i dont no wat else to do. Can anyone help?