Help ... Urgent

I need help have an automatic accent98 Hyundai, 4 `door, the problem is that several days ago the cart fails the exit or lifts from this, because I change spark plugs, air filter, gasoline filtyro, take away the catalyst since it was obstructed, and the problem persists, since when I turn it on and I will leave I have the same problem. Perfiego also changed automatic cash oil and nothing ,,, and when I go running the box does the changes simply the problem is the exit, the scans already happens and does not throw a code since there is not a checkngine. What could it be? SOS Help please thanks

Does it tend to turn off at the exit? If you get it on revolutionary, do you do well?

It does not tend to pay, the problem solves it was the pulley where the alternator's girdle and the Cram sensor rest.