I need help. I did a complete spark plug and coil swap on my 2016 m235. Sitting at about 103k miles. This was done in prevent and the car ran perfect prior.
Now, I am having a misfire on cylinder 2 and the idle is atrocious. I have swapped coils, the misfire doesn’t follow. I swapped the new plugs back to old, same cyl 2 code and the idle is even worse.
I truly have no clue what to do at this point and don’t really understand how the car is now running like a bag of shit after it being perfect this morning.
Edit:: I’m now getting multiple misfire codes after putting all old coils and plugs back in. I’m at a total loss.
Please help me figure this out.
Not immediately after the swap, but minutes after it was first started. Initial start and idle was fine… went for a cruise down the road and maybe a 1/4 mile in it threw the drive train malfunction and flashing CEL and was misfiring pretty bad. Code never left cyl 2