Td4 smoking grey smoke.
so
CHANGED breather valve to.p c v
Turbo
Air filter
Injector ALL !
hoses not leaking air fuel or water
Cleaned e g r
Cleaned oil cooler
clean fuel
New pressure regulator on common rail
Cleaned manifold air and exhaust
Exhaust clean
Will idle all.day long and not getting hot or cold but if I take down road its a smokescreen big time and colour goes.black white grey
at a loss now
So without changing engine any ideas ?
Cheers