I have a santro plus 2002 model which is in as much outstanding condition as it can be but there is some serious problem with it. It looses power as soon as i shift into higher gear, like from 1st to 2nd and so on. seems like a power delay. tries to catch up later on but it takes almost 4 to 5 second, some times even more and if you are heading towards a bridge, not a good idea. it wouldnt even move. The stuff i have done so far.
got plugs, air and oil filter changed along with oil.
throttle body service along with air intake, and sensors, and maf.
timing belt, bearing changed.
fuel pump changed.
Car never had a cng installation. its on petrol and gives 7km per litter with ac. i took it to yasin(Allah hoo chowk), Magic motors (model town) and hyundai dealership but all in vein. this thread is last hope, if i cant get it fixed, i will sell it. thank you all for your time and comments.