Well where do i start.
The car has done 204.000Km by now. At 140.000km it had the errorcode, and we went to the dealer four times without the dealer being able to locate the error after replacing the boost control valve at 140000km and the EGR valve (at 180.000Km) , I took the problem on in my driveway and after having been through a replacement MAF, Cleaning down VNT vanes according to the guide on this site, still the problem wasn't resolved. I the removed all turbo hoses and intercooler to pressure check them, everything was fine. then i received a hint on the Danish alfa site cuoresportivo.dk, that the hoses between boostcontrol valve and turbocharger might have a crack, and this was the error in my case. i have been mighty happy since enjoying my alfa again, but at 204.000km......my happiness ended
Engine control system error again
so the facts are:
-Boostcontrol valve replaced 140.000km's, 2½ years ago.
-VNT vanes looked perfect at 180.000km's
-MAF replaced with original Bosch at 180.000km (from genuine dealer, no ebay junk)
-EGR valve repled by dealer at 180.000km's (I did check up on him, and the valve has actually been replaced)
-All hoses and IC where in perfect condition at 180.000km's
-The car pulls fine, and doesn't feel different, it pulls fine from around 1500 revs (when the boost control hose was broken, it didn't pull below 2500 revs)
Every suggestion or crazy idea on what I can do to locate the new error is welcome, please don't hesitate