17705 pressure drop. 1 fault, LOTS replaced but still there.
This is the only fault code I am getting, I have tried pretty much everything, in fact too much to remember in one go..
To get to basics I have no split pipes (boost and vacuum) pcv system is fine throttle body is clean and alligned dv is fine
Car has poor performance at low rpm and jerky, but varies on how bad it is mostly its only just noticeable other times an embarrassment to drive, if I drive the car hard and then come to a stand still engine sometimes idles rough and drives rough for about 10 mins and smooths out but not 100% I was told it was the map so I changed ecu to a standard one and it's still same.
It's a nightmare! Anyone got any ideas? I have vag com, and all measured values seem to be ok.