I have irregular problem on my vec. When driving and/or accelerating turbo goes suddenly off ie. no boost what so ever. At same time a spanner light goes on. When getting ignition off and on turbo stays off . After that the spanner light isnt on anymore.
This turboless state can last one to three days. Then when starting its back with no problems
I have read fault codes and there is only one:
P0034 Turbo Charger Bypass Valve Control Circuit Low
Help and advice needed!
Thanks in advance,