[bimmerace]

So I got the following codes all of a sudden in a morning startup. I would randomly get the first one but after warming up and restarting the engine, it would dissappear. Car is FBO upgrade turbos with catless dp, but the cat codes were disabled by my tuner.

120408 - Charging pressure control: Switch-off as consequential reaction.
123002 - Wastegate valve activation: Short circuit to ground
12B102 - Oxygen sensor heating before catalytic converter, activation: Short circuit to ground.
12B302 - Oxygen sensor heating after catalytic converter, activation: Short circuit to ground.
1B5202 - Supply, terminal 15N_1: Short circuit to ground.