meal time, as the meissen know, I have been at DR for chip installation at the beginning of the year. now I wanted to know exactly and have been on a test bench for performance measurement. result : 156kw(212ps) / 5600U/min 338NM / 3080U/min air mass max. 171g/s (not included in the diagram) diagram see below. have installed the ITG plate filter, iron man ab kat, and an additional hose down into the apron for air supply (was times 2, cut one). unfortunately I also have a problem: before the run, the error memory was read out and the following appeared: 17608 air valve N249 mechanical error this did not read at all, but later on still delete. I also don’t know 100%, whether the test run went off without this error, or the error came back direkt and the run MIT error was. so smart I am already: either N249 broken, cable breakage, hose leaks. ask: how do I best proceed? best???? because laptop and vag-com are not available, so that I could test it again and again if I excluded a source of error. maybe one or the other times has suggestions or ideas. or prices, because just the same test was fixed. salutes dennis p.s. almost 2 weeks ago at the tuev, he had no errors in the memory. however, wondered that the memory read out there.