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.
Based on service history, plugs at 70k (just prior to me purchasing)
I don’t see coils anywhere so I guess there’s chance they were original, which is partly why I wanted to go ahead and do them with the plugs.
Bingo on the tune. I’m punching myself in the face rn over not buying my own tune the day I bought it. Boy what I would do for the info bm3 provides.
I have not had a shop look at the DME. Suppose I should ask them to do that when I drop it off, yeah?
Yeah I would definitely let them know the deal, as much as you know. Did you just not have a PPE done before you bought it?
Will do. Independent, no. (I know, my situation keeps looking worse).
The dealer I bought it from (non bmw) had it serviced and prepped for sale at a neighboring bmw dealership AND did their own inspection prior to sale, so I didn’t feel the need. Lesson learned on that accord. Not worth the risk of future uncertainty.
Gotcha. Well hopefully it’s not a big deal, like just needing a new injector. Definitely see if they can help you figure out the tune/DME situation.
And who knows, you could find a great new Indy shop near your parents for the future.