the 01119 error is normally dirty ABS sensors - Sergey had that particular problem a couple of years ago - see HERE +++
so it shouldnt be related to the other lumpy running.

Yes I mentioned it (01119) before, just haven't dealt with it yet :o .

It's not lumpy, more "kangaroo" as the throttle either works normally or hardly works at all until you floor it. And sometimes it changes (surges) without moving my foot. But only at the start of a journey from cold, well as far as I can tell.

Do you have traction control?

ABS sensor issues could cause that to freak out.. Does the light flash when the car is unresponsive?

I thought of that too, and no it doesn't, nor does the engine rev. It's as if pressing the throttle is ignored then randomly sensed.

I've not been able to do it enough in "safe, controlled" circumstances to get any more analysis. Leaving my house which is on the corner of a side road off a bend on a narrow built-up road on a hill with lots of parked cars around is far from the ideal spot. :ROFL:

Had a little play on the drive today with VCDS and I'm none the wiser. :Confused:
Set up to monitor the throttle position and pedal sensors (Engine, block 62) and a few other things such as air flow.
First, with ignition on but engine not running the pedal & throttle sensors all seemed to vary sensibly and smoothly.
Same after starting the car, everything seemed to vary smoothly as I moved the pedal up and down.

That said I haven't noticed the problem for a few days either. The only recent variation is that I have Tesco Momentum in the tank; it's usually Shell "cooking" 95RON. Could that be a factor?

I did check for codes and the only one was an engine coolant high temp warning, which I've never seen before. Possibly from some "spirited" driving to/from the Forest of Dean on Sunday. :ROFL:

A little update on this, the problem reappeared twice yesterday evening near the start of a short run. Just significant lack of power for a few seconds, no other symptoms. :Confused:

I replaced the coolant temperature sensor (it was suspect) a while back and have been running exclusively on Shell V-Power Nitro+ for some time and all has been fine.

Checked the codes today and the 01119 Gear Recognition Signal (intermittent) was there again, but nothing else. It's about 3 months since I last checked.

The Ross-Tech Wiki just says 01119 is a note and to refer to the TCM/J217 for detailed codes. I presume that means 02 Transmission in VCDS or is it something more detailed I need to get at?

A document I found online also says that intermittent codes will clear quickly, so do I need to stop ASAP after an "event" and plug the laptop in?
Though neither 1000km or 20 hours have elapsed since it misbehaved yesterday, so maybe the 01119 is not connected to the lack of power?

Will use premium petrol first, like Shell Nitro. If problem persists I'd change MAF and then throttle if it doesn't help, it won't be bad for any car this age anyway. Will definitely start with MAF as it is quick DIY job. Smaller errors from dying sensors, specifically those during warmup never get caught by ECU.

Can be fuel supply problems too...

Interesting I have the same problem.

On my route to work in the morning the first few minutes the throttle just seems to be a little useless and not respond. You need to give it more of a push to get the car to go above a crawl.

Only thing I have on VAGCOM is one of the O2 sensors pre cat is playing up. Replaced it but still get the fault, though I do not think it's related.

A further note is that it feels when driving cold at a steady sixty or seventy that it's a little rough, almost like the road has suddenly been made of cobbles! All very strange but clears up when warmed.

Yes ;) I'll have a look at cleaning the MAF next.

Meanwhile I've been using Sport mode in the sort of situations when it occurs and "fingers crossed" it behaves. As that will be keeping the revs up would that change in behaviour be consistent with an "iffy" MAF sensor?

>> I'll have a look at cleaning the MAF next.

This usually doesn't help. I'm planning to change mine soon preventively just because it is 10 years old car.

When car is cold monitor MAF output with VCDS for erratic things...