05 saturn ion 2

my 2nd cylinder is misfiring and thats the only one. anyone got any ideas on what it could be???? ive put fuel injector cleaner in but didnt help. any ideas would be greatly help.

did you try spark plugs?

It could be anything...spark plugs, plug wires, fuel injector, or worst case, cylinder head or valve problems. Easy way to check is swap each part with another cylinder. Swap the spark plug with another cylinder and see if the miss goes to the new cylinder, then try it with the plug wire, and then if that still doesnt work, if you got time and the tools, swap injectors. An easy way to check the injector without swapping it though is to use a stethoscope if you have one and listen for an injector pulse. If you dont have a stethoscope, you can use a solid stick like a wooden handle to something. Hope this helps