I`ve also got an odd sound which is almost like air leaking when under load so hoping a split hose. Thought it was the loose turbo/cat heatshield but obviosly not!
Here`s a thought.....would a leaking exhaust downpipe cause my problems? The van runs fine albeit a bit more sluggish than normal, no black smoke but has an odd noise from the engine bay which I thought was a blowing exhaust but not sure. Can`t do much investigating until later in the week.
P100 Mass or Volume Air flow Circuit Malfunction
P0299 Turbo pressure regulator.
P3008 flowmeter, airflow not pausable (max value)
They could all be caused by a split hose...
been out this morning and my escaping gases noise is coming from BEHIND the engine. Somewhere under the airbox...