Hi all, I've read pretty much all related topics but I still think this can go on its own, new one. After about 100k km on the bike , I've decided it's time for a change and want to go back to having a proper closed loop and reinstalled the lambda sensors (removed the dongles). The setup works pretty well and as expected, with only one issue. Trigger conditions: * 0-5% throttle, usually it's around 2. * low rpms - between 2500 and 3800-3900. * very low to no engine load. Example condition: rolling downhill and you barely open the throttle - the moment everything syncs and you're neither engine braking nor actually pulling on motor power. Then, the bike messes up and chokes into a very lean state (I can see between 15 and 16.5 in my afr gauge) and stutters. Back off the throttle or give it more (even a bit, i.e. maintain closed loop operation) and it gets its act together. I know I can't really do much at this point. I'm more interested if anyone else has managed to have a working CL setup and what hickups they've had. I'll try and upload an example video soon.