[BimmerKriss]

Hey
My N53B30 has been giving me issues lately, it has been progressively misfiring more and more on cold starts and im suspecting it to be injectors as i have checked out the coils but still making sure before i drop 3k USD (or 1.5k for one bank) on brand new index 11 injectors.

It always starts fine on cold starts right of the bat, but after about 40-50 seconds it switches some kind of mode which makes the engine miss quite alot until it has warmed up.

According to INPA, cylinder 4 and 6 seems to be the culprit.
Watch around 0:45 when it switches mode:
https://www.youtube.com/watch?v=-5yW..._channel=Kriss

Does anyone know why this happens? Does it just switch from cold start mode to regular idling mode with less fuel?
Is this typical of a leaky bad injector (or possibly two in this case)?