No idea whats happening with my m3

[Har8.h]

Hey!
I just bought my e92 m3 from a third party dealer. The rod bearings and throttle actuators have been replace/refurbished. A couple days after buying the car, I’ve noticed some inconsistent issues with the car. Out of nowhere I get rough idles every now and then, more frequent when cold starting the car. After a couple rev bounces, the car goes into limp mode, idling at 1100 rpm and max redline at 5000 rpm.
I let the car warm up and start driving with the code until it warms to its normal temps. Once Im at a red light, I turn the car off and on, idles normal-ish with no code, and i drive with no issues at all as if nothing happened. Smooth shifting and driving. After running a few errands throughout the day, out of the blue with the normal temps and regular idle, the car throws itself into limp mode again.
Just today I was filling gas to half tank and my “close gas cap” light came on too when it was clearly closed. First time that code came on.
Recently when i cold started the car, and let it warm for 30 seconds-1 minute then drive, it was completely normal the whole day.
SUPER inconsistent, but I provided pictures of the invoice of the repairs before I bought it along with codes I got the past 3 weeks of having the car.
I believe it might be something with the VANOS, fuel tank breather valve, fuel pump or O2 sensor

[spammysammich]

what coils did you provide them with, is your battery voltage ok, are the grounds ok, do you have any exhaust leaks?

[Har8.h]

Originally Posted by spammysammich

what coils did you provide them with, is your battery voltage ok, are the grounds ok, do you have any exhaust leaks?

I havent checked any but I did order a fuel tank breather valve which Im replacing today. I checked only the coils and they look fresh, and looks like the bought the OEM coils.

This morning rough idle at cold start, i did same thing drove till warm, restarted car and idled a little rough but not enough to put into limp/emergency mode.

[RocketyMan]

Originally Posted by spammysammich

what coils did you provide them with, is your battery voltage ok, are the grounds ok, do you have any exhaust leaks?

Yup. I question the coils and spark plugs used.

[Har8.h]

I just replaced my fuel tank breather valve, no more misfiring codes just the following codes:
280D - Idle actuator monitoring Bank1
2B57 - Engine emergency program
27B0 - secondary air system throughput bank 1
My DSC / DDE light is on with it too