PelicanBlue
Registered User
Hi all
I recently removed my CATs from my B7 Avant (ASB engine code) as I suspected they were blocked and causing my poor fuel economy. The intake manifold and EGR were both cleaned at the same time
After having removed them I have excessive white smoke on idle and ONLY when the engine has warmed up.
Upon investigating, I have checked that the injectors are within spec by means of the VCDS measuring blocks 71-77 and 13-14
The smoke smells strongly of diesel- in fact almost like kerosine.
When she idles from cold there is no smell.
I have observed a distinct change in exhaust note when the engine warms up - and by this I do not mean the revs dropping after warmup- but a drone as if the EGR valve is opening/ closing.
Any advice will be greatly appreciated.
PS this model was prior to DPF
I recently removed my CATs from my B7 Avant (ASB engine code) as I suspected they were blocked and causing my poor fuel economy. The intake manifold and EGR were both cleaned at the same time
After having removed them I have excessive white smoke on idle and ONLY when the engine has warmed up.
Upon investigating, I have checked that the injectors are within spec by means of the VCDS measuring blocks 71-77 and 13-14
The smoke smells strongly of diesel- in fact almost like kerosine.
When she idles from cold there is no smell.
I have observed a distinct change in exhaust note when the engine warms up - and by this I do not mean the revs dropping after warmup- but a drone as if the EGR valve is opening/ closing.
Any advice will be greatly appreciated.
PS this model was prior to DPF