I did my Secondary Pump with new bolts etc and resealed it but my Golf would still be a bit lumpy when the pump was running. Just a characteristic of the car I guess and I lived with it...
Yes mate, the SAI pump repair has been done on mine already too. Still runs funky when the pump is on, so much so I wait for it to end before driving off.
Surely the car never did this from new, what's worn out / leaking to make it run like this now?