Hi @Stalker
Yes Buddy, I've had it in bits a million times, it's a very long story, but I'll be as brief as I can ...........
Guy used to live in Yorkshire, now lives in Dornie, while he was visiting Yorkshire Xmas 2017 he traded in his old Car and bought the VAG crap, on way home up comes flashing GP light, I read it, it went back to car dealer, he took to Turbo specialist, came back with new (non genuine) Actuator, still same flashing GP and code, I spoke to Turbo guys who def knew what they were on about, I set it up exactly how they said with Vac Gauge, still same, (it only does this very intermittent) sometimes it'll do 10 miles and do it, sometimes 1000 miles
It to and fro'd to Yorkshire a few times, Dealer did offer a refund, but guy liked the Car and opted to keep it He was happy with Dealer and I took over the fixing of it.
Next I fitted a genuine new Actuator and set it all up again, still the same.
Next I checked out wiring from ECU to Actuator, all good and fine, told guy to live with it, it doesn't go into limp, doesn't put up EML, runs fine etc, just puts up flashing GP light, always seems to be when coming to a stop !! No other codes over thousands of miles. Switch it off and restart, flashing gone, still drives OK.
FIIK (fucked if i know) but it would be good to ring him and tell him I now know what is wrong wi' it and can fix it lol !!
It's the only one I haven't actually fixed in 3 years of running this particular business, I would have carried on with it, but he doesn't earn a lot of dough, and has already spent loads of bucks on a fault that is having no ill effects other than being a bloody nuisance