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Hi and low manifold pressure

1K views 0 replies 1 participant last post by  OzzyX5 
#1 ·
Hi everyone, I am having some issues with my X5 3.0Diesel, To drive the vehicle it goes well then lags in power, at the same time I can hear the turbo load and unload.
It has listed high and low manifold pressure codes, it does this for a while then goes onto default(gutless). There are no codes to indicate a MAF sensor problem, has anyone had this happen to them?
 
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