I am only a recent VX owner. Its a 1.9 cdti Auto 06 Facelift 'Club' model, with 36k on the clock.
The only engine mod to date, is a K&N filter, & air-box mod.
On starting up, from cold, its idle is lumpy, like its 'missing'. I generally do not notice the lag problems between 1.5k & 2k revs, but it comes & goes, but overall, I am happy with the drive, & it seems to pull ok, for an auto!!.
My question is
A) What are the major symptoms of a blocked/failing EGR valve?
B) What major symptoms do I need to look out for, that the '3rd injector' rewiring will cure.
I do spent a lot of time looking back thru old threads, everyone says what they have done, but rarely, why they had to do!!
Thanks, in advance.