please help nobody understands

Friends 1998 model 106 gti I have a car when the vehicle starts, the idle rises suddenly and a black smoke throws the gas, it eats a gas, it does not eat, it eats gas, it smells like black smoke, the factory chimney does not go back, it doesn't smell gas everywhere. they all looked at the repairman, spark plug, solid oxygen sensor, etc.

so most likely the engine will land and the master will tell you the problem after turning it on, it seems like not understanding the situation rather than understanding it.

Enjektor said one of the masters, but I could not trust a voice from every head, I was surprised what to do

I don't know the problem, but if you want to have a look at the service.You will have at least knowledge ... according to him, you can have it done in a place you know.

Do not be fooled by friends who have any other ideas