Hi Guys, Just bought a Mk5 140 tdi, no lights on when i got it and it drives around town superb loads of boost from the turbo and will rev all the way up.
I get it on the motorway and try to accelerate next thing you know about 60-75 mph the car goes into limp mode. I have plugged in a cheap code reader and I am getting the P0234 Engine Overboost Condition code.
I have done a ton of reading on here and the other gti forum regarding cleaning the Inlet Guide vanes in the turbo.
I am just after a bit of advice regarding this, before I go whipping my turbo off and giving it a clean.
is there any other faults that could cause these symptoms, ie put the turbo into an overboost position other than sticky IGV's?

Thanks Dave.