Bro U should have checked my replies oj the forums. Anyways, here is what I did and also another member from quetta and in both cases, the issue was resolved.
1- Make a solution of surf and water and mix,
2- take a sponge and dip it in the solution.
3- Squeeze to make foam.
4- Check all clamps starting from the kit tot eh filter to the injesctors and then from each injector to the intake manifold.
5- There is a 90% chance that all (in my case) or some of those will be loose.
6- Change any clamps which are bad.
Good to go. this helped me after checking a lot of things... should help U. there should not be any issues with the tuning. Aso, please state the mileage of your Liana as well.