Hi everyone, I'm one of the unlucky ones getting the P0234 overboost error code on 2002 Vw bora ALH. Have gone through most minor possibilities and am next going to replace all the vaccuum lines. I have read somewhere that there are 3 different diameters of vacuum hose that will need replacing. Does anyone know the approx distances needed for the various diameters? Have had visions of having to take one hose at a time to parts store to ensure correct replacement. If this doesnt fix it I will be back with more info. Thanks for reading.