My vz Calais when I put my foot down blows black smoke out anyone got ideas??
Oil leak or head gasket from what i've heard could cause it, dont know how accurate that is
Black smoke generally indicates unburnt fuel. I would possibly suggest that either an oxygen sensor or the maf could be dirty/faulty and when you boot it the computer cant compensate quick enough, therefore flooding the engine with fuel and causing black smoke
i always thought when it came to smoke out the exhaust
white = condensation/water etc
blue = oil burning
black = fuel
so id probably agree with the above post
Plug a scan tool in and check fuel trims.
Silver Certified.
Cheers guys I'll go get it checked with the sensors