Mk1 tt 225 boost issues/bogging under load

Zman6000

Registered User
How’s everyone doing? Still not having much luck with my tt, it’s 2001 225 roadster full service history and only 74k on the clock, was out last night went to accelerate in 3rd at about 30-40mph and it just kept bogging/no boost? No lights and no faults codes? Only fault code that has appeared intermittently is the one about set point not reached? Something to do with vvt I guess? Anyone come across this before?
 
Bogging:
Maf condition?
Fuel trims?
DTC:
Cambelt due?

VVT tensioner uses oil pressure I think? Low oil pressure might cause that code.. Not sure, I have an APX
 

Zman6000

Registered User
Bogging:
Maf condition?
Fuel trims?
DTC:
Cambelt due?

VVT tensioner uses oil pressure I think? Low oil pressure might cause that code.. Not sure, I have an APX
It doesn’t do it every single time,
Maf seems ok, haven’t checked fuel trims,
Cambelt and water pump done today no difference :(
 
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