Panda Panda stalling

[spring234]

I'm new here. Hi everyone. I own an '07 Panda 37000m. Best little runabout I ever owned. That it is yellow is unfortunate! Recently it has started stalling for no apparent reason. Perhaps twice a day then not for a day or two. Starts again immediately. Nothing shows up on test. My garage has changed the plugs (original!) and air filter to no avail. Any ideas? My thanks in advance

 

[Eklipze3k]

I'd be looking for a split vacuum hose, had a similar issue in my Seicento. Never did it when cold, only when the car had warmed up.