A lot of smoke by diesel car, help !!!

hello!! Well, it turns out that I have a golf IV TDI 1.9 of 110CV, and when I tighten the pedal to see the response of the car, I make a lot of smoke by the exhaust, I think the smoke is gray or black, and I only vote smoke when it is very low of turns or when I thoroughly tightened the pedal to see its answer, (never happened to 3500 rpm) is worrying this problem?

Hello, the same thing happened to me and it was that it was carbonized, I took it to the route at 4 speed by one few km and after it is very good, but you will have to see a mechanic because it can have problems of valve seals greetings and luck !!

Hello friend, it is sure that they are the injectors that are spent or barefoot but before we go with your hand, first change the air filter and try it and if the problem persists it is the first thing I said

Hello, thanks to both for answering, Alcri, it turns out that the air filter is new, so that it cannot be, I think it will be rather the injectors, since it has a lot of logic that it releases smoke when it tightens it, so I think it will be that, many thanks to both of truth

I tried to give the car but well from the first marches because if you have never passed it from 3500