Ancient Thread Bump Again
Just like to say a big thank you to Ross for going through the steps in this thread!
I recently had my 1.8T mapped but it started to lean out at high boost/rpm.
Mapper suggested using a pressure gauge to test and what components to look at, as it didn't arrive in time I did some googling and found
how to use VCDS to see my issue (already had this, probably should have asked the mapper
how to do it but didn't think at the time was just disappointed my car didn't go as fast as I wanted it to
) and found this thread.
Anyway, replaced FPR followed by the pump and the
problem is sorted
(back on the original FPR and still ok, so dodgy 47k miler pump).