[Dezzy]

On my way home Thursday and i felt what was like a slight missing like on one cylinder, it got worse and after about 100 miles was quite bad but seemingly worse after lifting off the throttle and putting back on. I got to within 30 miles of home and the whole car was shuddering like I was down to 5 or something. It cut out and wouldn’t restart.
No faults recorded not even a misfire. But while trying to restart it threw a code about idle control valve so I reset it and still nothing. Called the AA and it did restart but very lumpy and popping back through the air box, the only way I can explain it is it sounded like a badly tuned carb’d car I’ve not heard an injected car sound like it almost like it was flooding. It did clear and we couldn’t get it to replicate the problem. Plugged into his Snap-On tool or my Vagcom there are no faults recorded. Car was fine all the way home. Fired it up yesterday morning and I cut out in front the house, restarted straight away.
I took the idle valve off and gave it a good clean and the MAF too Ranj came round while it was going back together and we went for a little run it was not missing at all although was a little hesitant a couple of times through the rev range.
Obviously I’m stuck without a fault and for it to cut out and not register one I’m stuckerer. Are there any live readings I can take that could pinpoint what could be happening to the old girl?