Originally Posted by DougInKy
i am having the same problem with my truck with the code saying it is miss fireing on number 4 cylinder and a miss fire in the start up can you tell me if this means i need to change the coilpack and the plug or just one of them ?
Can't tell yuh sh^t without more info. You failed to fill it in (Top right corner). You have no sig? You haven't even posted what vehicle ?? Are you sure you have coil packs and not a COP ignition? What year ? Engine? What were the exact codes on the scanner? Not the defs - The codes.???
Have you used the search bar?