[shakmonster]

Hello all I recently posted about my engine misfiring in the third cylinder. All of you said to swap the coil pack to see it that's the problem so I swapped cylinder 3 and 2 and ended up getting a misfire in cylinder 2 so I bought a new coil and replaced it. The car was running smooth until 50 miles later it misfired again. I turned the car on and off and it went away for about 3 and 4 times I noticed that I would get a drive train malfunction when I would drive fast in sport mode but now the check engine light wont go away so I checked my scanner and it says the third cylinder is misfiring again even though the car has brand new sparks in it and I swapped the coil with a good one. I read that it could be because it put 87 regular gas in my car instead of premium but I doubt it since the third cylinder keeps misfiring any help would be appreciated thanks!