P12BA Engine Code

baby-z4

New member
 California
Hey everyone,
A few days ago I got the P12BA check engine light code. I reset the code and after approximately 300 miles it came back on. I have a 2010 BMW Z4 30i. I cleaned the MAF and MAP sensors already. Any ideas about what this code means and what could cause it?
P.S. My car starts slow (slow crank), first I thought it was the battery but the battery is in good condition. Now I started to think about the starter. Also, it leaks oil from the valve cover gasket. Sounds expensive :/
 
Update: First I tried to clean my MAP and MAF sensors, it didn't work but then I changed the MAP and the code is gone. The problem was the MAP sensor.
 
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