I have an apexi pfc installed and on the commander i`ve noticed the setting for the air flow values has altered recently.when the car idles it usually reads between 1315 and 1355,i noticed a couple of days ago that it now reads between 1260 and 1290 when the car is idleing.i have also noticed the revs drop down to about 300 when pulling up at lights and dipping the clutch,but not all the time.is the apexi telling me my maf sensor is on its way out,Simon this may be one for you to answer mate.

 

Bump for info/help.