@dani_kk help the guy Bhai.
These lancers are not that fuel hungry Bhai. Our 2006 gives 11.5 with ease. Get it checked for code and analyse the fuel mixture and live fuel data.
If the Catcon is choked the car will not drive properly it will feel a bit sluggish, also do check if at cold starts your car smells of petrol. Also check the O2 sensor.
@rajaatta if I am guessing correctly you are also in pindi. Guidance required plz.