Limp mode problem
My 2001 156 2.4jtd had a problem with going into limp mode when i bought it, i found a split in the turbo hose and a split in the lower intercooler hose, I have replaced these and the pipes from the Turbo actuator.
Once it gets to around 4k it loses power worse in 5th gear about 3k. The management light does not always flash up when it does this and it is not putting a fault code up.
Is there any simple way of checking the Boost Pressure Valve? I cannot think of anything else?