It is not quite possible for the ambient air to blow across the MAFS and stall the machine. There are also after market forced air charger that forces more air into the throttle body in a bid to increase performance.

Though I can't really explain how the breeze is causing the engine to stall, but I would say the engine will only stall if you pull the Sensor plate up. Pushing it down would rev the engine as you are giving what the engine needs : air.

Thanks and hope it helps

__________________
1992 200E
M102
102.963
AKA Silver Old Grumpy
Always hope I can freeze someone with the aircon- Just change the compressor again, Subseal leaked with a psssssssss sound.
Its the NON-3 Pointed star items on my car that cost more to repair.$%^&%%*^&