[socalengineer]

Hi,

I'm getting two codes on my 2015 N55 PWG engine:

120408 - Charging pressure control: Switch-off as consequential reaction
121533 - Charging pressure - ambient pressure, comparison: Charging pressure too low.

- DME shadow (inactive) codes:
121521 - Boost pressure sensor. Multiple fault.
1F2801 - DME 2, Software: Program invalid.
1F2802 - DME 2, Software: Data invalid.

I just had the valve cover changed. The car is not going into boost either, it goes really slow. I also get a drivetrain malfunction sometimes.

Also I just put a new map on with bootmod3, and changed the boost sensor to the N20 3.5 bar sensor.

Please advise did I do something with the N20 sensor? Or is it something the mechanic might have done with the Valve cover? Thank you

[socalengineer]

Nevermind... was a user error. Chose the intake manifold TMAP, instead of the pre-throttle TMAP option in bootmod3. Car runs fine now.