[lordbmw]

I think it might be ignition coils.
So I ordered a new set of ignition coils and spark plugs.
Hopefully it’s not the injectors.
What do you guys think?

[Tyc0]

I have the same codes right now, without the misfire, but with some o2 codes. But at first I only got the fuel mixture codes. I'm replacing my o2's tomorrow and will update you with my findings. If your cold start is any kind of normal I doubt it's your injectors. I also doubt it's your coils or plugs as it's happing across both banks, and i don't think it's common for multiple plugs/coils to fail at the exact same time. But even if it's not, maintenance never hurt anybody.

In the meantime try moving cylinder 1 coil/plug to another cylinder and see if the code follows.

[lordbmw]

Yes, my cold start is normal.
I first noticed the Service Engine Soon warning came on after I suddenly accelerated and then it ran rough. I restarted the engine and the warning light turned off and the engine ran normally. So I’m now driving it real slow like it only has 100hp, lol. May be the misfire is a new code and the other 2 are older.

[stewbets]

Originally Posted by lordbmw

I think it might be ignition coils.
So I ordered a new set of ignition coils and spark plugs.
Hopefully it’s not the injectors.
What do you guys think?

Are you able to take a log? Mixture control codes point to fuel trims being maxed out, either too lean or too rich. The misfire could be a coil, but you've got another issue with the mixture codes and a log would be beneficial.

[lordbmw]

Originally Posted by stewbets

Are you able to take a log? Mixture control codes point to fuel trims being maxed out, either too lean or too rich. The misfire could be a coil, but you've got another issue with the mixture codes and a log would be beneficial.

I probably could take a log though I’ve never done it with MHD