My car (2002 A6 130 AWX) has lost power from the turbo a couple of times over the last week. The intake and exhaust sides of the engine are standard at the moment, and the fault goes after a restart. I don't have the facilities to read the error codes.
One common component that I understand is worthwhile changing would be the N75 boost control/converter if the turbo is losing power, but I have an EGR delete kit to fit over the next couple of days as part of some planned efficiency upgrades. Does the EGR delete bypass the function of the N75 anyway, or are they independent systems?