Well having initially thought changing the vacuum unit or w/e it is for the intake manifold flaps had cured most of my lumpy idle/hesitation around 2k rpm and by the smell of it, overfuelling, its back to how it was again....and I'm fed up lol.
Anyone ever managed to cure this without replacing hundreds of parts? The exhaust fumes stink of overfuelling at idle and its a little smoking apparently and it can be quite juddery when idling. The turbo is lagging until 2.5k rpm as well.
I've cleaned the EGR, replaced the vacuum unit, cleaned the intake manifold flaps. I don't want to go down the route of replacing the MAF, injectors, EGR etc etc in hope one will fix otherwise it will quickly become uneconomical to fix as the car is only worth around 3500 anyway.
Any suggestions/help as always will be greatly appreciated!
EDIT: oh yeah for what its worth, I'm sure its worse since having the cambelt changed. I don't think its a timing issue though as it can be intermitent. I also had the oil pump balance shaft changed around the same time before that issue cropped up. I've also had the classic glow plug light flashing once (which put the car into limp mode and caused a boost error on VCDS) and a couple times its flashed up on the dash saying one of the brake lights is out, then clears again