That issue went away until a few weeks ago. Now it happens every single time I shut the car off and restart it
My mechanic trace back the problem to the throttle body assembly, the linkage is very hard to operate even after cleaning and lubricating.
This could also explain why the previous owner had to install a new actuator every 12-18 months...
We are planning to replace all throttle bodies, shaft, arm and what not.
I'm a bit worried as I can't find any info or stories about anyone who went through that, I'll see what happen I guess ! Will report back