Had a weird thing happen this morning, that I've never experienced before.
Car still relatively cold, rough idling in traffic. When trying to pull away, the car stumbled for a couple of seconds as if about to stall, then suddenly lurched (enough to spin the wheels on the damp road), before settling back to normal. It was like the fuel that should have been flowing to get us moving was not getting to the engine, then suddenly being dumped in.
This happened 3 times in the space of a couple of minutes.