Has anyone actually thought about how the TDI intake path could be improved to 'relieve' the mass airflow sensor (MAF)?
Since you're driving a 200 ALH model, you probably no longer have a fine mesh filter in the intake system. This kept the large debris out of my 1998 ALH engine, but it also needed to be cleaned regularly because otherwise, unfiltered air from the engine bay would be sucked in through a bypass valve.
My ALH-LMM lived a good life until the end... if necessary, you can install a diode... or you can get an intake manifold from the 1998 model.
