Originally Posted by
gldgti
I've also not been able to make much sense of the EGR/ASV duty cycles - but it does not seem to be clear cut what the measured value is, in terms of whether its "% on" or "% off", referring to the valve that controls the vacuum going to the ASV.
I tried to make sense of it a couple of times whilst driving along in my skoda and also in my dads t4 2.5tdi, and from what I measured on each car, it looked like the value measured meant something different on each vehicle (even though the ASV is pretty much identical).