Tata Motors — Safari 2.2 year 2012 problem

Address:

396195

My vehicle is having a problem. The acceleration gets locked after getting heated or when I goes on hill side road. The acceleration goes upto 2500 rpm and does not go up. Sometimes check engine light also is shown. After putting off the engine the lights goes off and again the acceleration gets normal. But the same problem again is repeated so can you pls suggest what to do ? I have shown this problem at Nasik service station and they said that there is a problem in censor of Air Filter but after changing it than too the problem was there. So pls solve my problem.