Now generally most people on here would agree more boost = more power = awesomeness! However, since I fitted my new G DV, my mapped GTi has decided on the motorway to go into limp mode. VCDS is throwing a 16618/P0234/000564 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition) error.
I don't get any lights on the dash and a simple restart gives me my turbo back! Clearly as its a brand new DV I know its not that. The question is what else could be causing it? Reading around there seems to be no general consensus:
- PCV - never changed in the 104k miles (8 yrs of ownership) - should I change this? Can it cause over-boost?
- Coil packs - changed under warranty about 2 yrs ago.
- spark plugs - changed at 80k miles so due to be changed at 120k
Any ideas what I can log in VCDS to get a better picture of what is going on? Is it worth changing any of the above to cure this condition which is very irritating because when it is not in limp mode it pulls like a train and feels awesome!