E46 code f5,f6 secondary air flow too low, how to check air pump and check valve

E46 code f5,f6 secondary air flow too low, how to check air pump and check valve Tube. Duration : 1.55 Mins.

this short video shows basically how to do a simple test to see if your air pump and check valve or working, usually a f5,f6 code means your check valve has ...