Hello,

My mini seems to be running fine, but it keeps throwing the following codes and gives me a half power engine light. It typically happens after the engine is fully warmed up (10-15mins into driving). I didn't want to blindly order a air mass sensor when it might be my valve cover or something else people more knowledgable than me could help with.

2B5B Air Mass Sensor Plausibilty
2B64 Intake Manifold Unmetered Air

Edit I attached a pic of my scanner lol



the boost pressure code seems to happen when I let go of the gas and then i get a half power light, but no change in performance. No limp mode etc.

It's been to a mini mechanic (Mini Cooper Experts In Irwindale, CA), but they could not figure that code out. they said it was not my diverter valve and perhaps it meant i would need a new turbo soon.

the following oxygen sensor code hasn't been back since i first got it in october.




Thanks In advance!

 

Check all air pipes for leaks or breaks. Usually the cold side of the turbo inlet breaks. Also, the PCV pipe cracks just a hair and you get the code.

You could try a smoke test to see where the leak is at.