*edit*
I had a look at the log and its utterly useless.

Unless its patched for a map sensor in the intake manifold, your "mafless" tune will always be wrong, you have no atmospheric density compensation. VCDS logs are garbage, you can not possibly find any issue with those crap 3 channel logs at such a slow capture speed. Im being blunt for a reason, sugar coating it wont help you. Fit a genuine maf sensor, get some real logs using vehical or me7 logger, and if closed loop is dropping out during full throttle, check your bts and knock correction. If bts is set too rich and request goes below the internal minimum lambda value, closed loop gets switched off. Same goes for knock correction, if the ecu is pulling a shit ton of timing and dumping fuel trying to save the engine, you will have the same result, lambda switched off.

install a MAF and stop fucking around. speed density is a total fail on any of these motors. It gets you literally nothing.

If you have a known good reference, compare logs.

I doubt that you have any properly running speed density car though.

it looks like you totally ignored all of _nameless' post which is dead on accurate.

No, I wont check the file, why would I? It "doesn't work" because the tuning approach is shit and the file is too far off causing lambda control to drop out for one reason or another plain and simple. Tune the car better, take actual data logs not vcds garbage. I mean one of the blocks being logged was maf flow and you don't even have a maf plugged in.







So, on a different car, different setup, different software version "it works"... And wtf does that have to do with this car?... Nothing. Also, if its not your car, you dont tune 1.8t engines whats the point of making the post?

Dont know who tune it but its not the best..
I think you have to check your fuel trims..