I wonder if anyone could shed a little bit of light on a certain code. Have had a turbo cutting out problem on my a4 for a few weeks now, and decided to take it into my local garage, who then plugged it into the diagnostc computer to try and solve the problem. Sure enough straight away the fault code 01892 came up, next to it saying unknown code, but the ecu is obviously recognising the code as something, but the guys manual didnt have that code in it, so does any one out there know what this particular code is at all?