Sachin Deelaka

My terios J100 1997 mannual car is not accelerating well. I bought it few months before and i changes all spark plugs and petrol filter and MAP sensor. But the issue seems to be same. The fuel economy is too low. It starts well and fine at 1 and 2 gears. But at 3 and 4 it seems car has very low power. Plese give me some of your ideas to solve this and also a good mechanic if someone knows who deals with terios