Kia Sorento 2006 acceleration loss

I am checking a sorento kia, the symptom it presents is loss of acceleration, and black smoke, I already made a sconer and threw p0100 air flow meter, clean it it went well but after hours I presented the fault again if anyone knows or has happened to him I would like to know the response in advance thank you very much, a hug ...

Good Edwin, testing the MAF cover and cleaning the potentiometer contacts only remember to use silicon to seal it again or also that the combs of the combs do not contain corrosion, perhaps it is not the sensor itself but the contacts.