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Fault code P00BD M.A.S Air Flow High

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Re: Fault code P00BD M.A.S Air Flow High

Postby metalworker0 » Sat Jul 25, 2026 1:53 pm

going to be a an air boost leak or the sensor itself

air / boost leaks can be:
boost pipes
turbo wastegate if old type with a short vac ram going to it
EGR sticking open

so cant follow your diagnostic tool .. forscan is best is you can see what the EGR is doing

im not sure how modern actuator would create a leak .. it could stick and not make enough boost .. has gearbox with plastic gears that strip and the actuator Variable Geometry mechanism on the turbo can stick. a sort of iris.

all the best.mark
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