Power loss while gentle throttle

[Alexbaba]

I understand how it should work. But as I left the car to the mechanic, (I work the same opening times as the mech)
So I left a printed copy of your step by step check outs. But I dubt he did them all. Probably just key on 3 times and yes. 2.8 Bar seems fine. DONE!

The shop really dont put any love in their work, I've heard.

So seems, like I have to get myself a tester gauge.