these codes are indication of air leaks downstream (after) of the mass air flow metering. Usually either small vacuum hoses or in older cars cracks in the rubber sections of the intake.
Try spraying some "starter fluid in those areas and see if the RPM changes. That indicates where the leaks are.
good luck
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F06 M6 Grand Coupe CP
Sapphire Black Metallic
The drive is the destination
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