Oh, yes. The CTHF engine. Still a detuned cupra/vrs/gti engine. Maybe the new software makes it less noticeable that the engine is barely working 😆. On the CAVF you could see even from a dyno graph that the engine was limited on purpose and in a clumsy way. It would just hit a target power output and stay there. The power curve of the cavd (160ps) is way better. 

The issue was not de-tuning as the 150PS were great, including that in 2012.

The issue was taking them to 160ps & 180ps (185ps with a Audi A1) with the inlet manifold they used, the injectors, oil spray jets, breathers and the consumables like the spark plugs 2009-2011 then 2011 on.

Plus the bl00dy mindedness of VW Group that failed to admit issues but discontinue the engine in 2012 for a change of engine management and some bits and still not nail it.

Edited 6 July, 20205 yr by Roottoot