Ms Maccruiskeen has Mk1 Leon, 1.4 petrol. Its developed a stalling issue but its really quite specific as to the circumstances when it happen:
It won’t happen if the engine has been started from cold.
It won’t happen if the engine is started from warm, after a short stop (say a filling station)
When it happens is after a decent run (an hour or so of driving) and then a stop of 1-2 hours. So the engine still has a bit of latent heat in it. When this is the case pretty much the first junction encountered after starting- the engine will die on the approach as you take your foot off the accelerator to brake. It doesn’t chunter or struggle, it just drops straight out. It then starts again fine and will be fine for the rest of the run.
So…. what the bloody hell is going on?