Hi hope someone can help
I have an Audi A3 1.6 diesel
just over a year ago it caught alight
it was left for a year, I finally got someone to fix it
althoughy wen I picked it up it had a mass sensor code and egr problem
he unplugged my mass sensor and that how I drove it for about 3 months till it went into limp mode, I went to buy a new mass sensor and Audi said mine was a 3 pin but there was a 4 pin wired into my car which the bloke who got it back up and running must have done
fast forward couple of weeks of it being in limp mode I had it remapped instead of having the egr done
so dpf deleted and cut out egr blanked off still in limp mode, it’s now thrown up a couple of different codes
turbo supercharger underboost & air intake leak
auto electrician wired in new 3 pin sensor ect
all codes now gone but car still has no boost, he’s checked solenoid, map sensor and changed my fuel filter and he’s run out of ideas now he’s saying change actuator
but wud this not throw up a code, are they not electronic, audi are saying £800 for a new turbo which I can’t afford any ideas wat it cud be