Okay I will get it checked and see if I can get a better fuel line.
I am again suspicious of o2 sensor bcoz from yesterday evening even on light paddle the CEL again starting showing and again code 25. I will try to get o2 sensor with its wiring and plug and solder the wires.
But i dont feel engine is not running properly bcoz of fuel shortage and its giving amazing torque.
Economy I just calculated its around 13.2 KMPL local Islamabad pindi driving considering its a 1.8 and so far its not run on light paddle in fact everyone from my office is on a test drive its nice. 
Before STA connected it gave me 4 KMPL 