[sideshow]

yes self tune is **** on most cheap ish ecus

to run a wideband O2 and get correct reading to do
self tuning u need an O2 module or whatever
they are called
and if u have a big cam expensive ecus can map both
map and throttle
and cheap ecus can just do one or the other
this is why a lot of people don't realise how good
some std ecus are they read map sensor and throttle
sensor and air flow meter all at the same time and when
u get a good tuner u can tune it no matter what cam is it