Hi guys new to the galaxy just bought a mk3 2007 2.0tdci ghia when driving there is no power at all it takes a lifetime to get to 70mph on motorways. ive had the engine managment light come on it said code p0299 low boost on turbo thing,is it the maf sensor ive checked all hoses the are all secure and no holes ive tried the unplug the maf sensor while engine running and tge car makes no change does this mean its knackered