Subaru Legacy GTB 1996 twin turbo

[MRahme]

My car is running very rick and blowing black smoke every so oftern. Could
it be the Air Flow Control just after the air fliter that needs changing
and if so any where i can find one cheap

 

[Juhan Leemet]

My car is running very rick and blowing black smoke every so oftern. Could
it be the Air Flow Control just after the air fliter that needs changing
and if so any where i can find one cheap

Some more information might help? What is the mileage on the engine? I
assume (since you have a GTB twin turbo) that you drive it hard? Did this
condition start suddenly? or was it a gradual transition? Notable events?

 

[MRahme]

The car has done 70,000 kms. It started suddenly. I had Subaru dealer
diagnose it and computer said it was the Air flow control just after the
air filter. i had already changed the oxygen scensor.

 

[MRahme]

The car has done 70,000 knms and it stated about four months ago. the oil
is fine and i have changed the oxygen secsor but a little better. their
is a lot of carbon deposit and the smoke is black not grey. the car has of
course been driven hard at times but not all the time say 15%. subaru
dealer diagnosed the car and said its was the Air Flow Control just after
the air filter. i was told i could clean it and so sprayed it with WD40.
still no better