A3 2.0tdi BMN engined 170 quattro. Car has had remap ,egr,delete,dpf delete..Performance superb with better mpg.About 6 months ago had a really strange misfire so changed the following:turbo,tandem pump,N75,MAF,air temp/boost sensor,fuel filter.None of these made any difference as the miss was caused by the DPF delete part of the remap.Once this was corrected car ran superbly again until 3 weeks ag
ccasionally on over run it blows out blue smoke from exhaust.Sometimes it does other times nothing.Also when accelerating hard sometimes but not always there`s a lot of blue smoke.No oil in fuel filter housing and oil level doesn`t go up so injector seals and tandem pump must be ok.Car still goes like a rocket.Driving normally ie little boost no smoke at all.Breather pipes and vac pipes all clear.
Anyone any ideas?
ccasionally on over run it blows out blue smoke from exhaust.Sometimes it does other times nothing.Also when accelerating hard sometimes but not always there`s a lot of blue smoke.No oil in fuel filter housing and oil level doesn`t go up so injector seals and tandem pump must be ok.Car still goes like a rocket.Driving normally ie little boost no smoke at all.Breather pipes and vac pipes all clear.Anyone any ideas?
