Fuel smoke would be black, your exhaust would be exceptionally sooty. BOV's cause it to run rich momentarily while exhausting boost (manifold under vacuum)
------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Est. 400 HP) 1990 300ZX TT 5 Sp (Est. 600 HP) 2004 G35 Sport 6MT (DD) |