Actually I went for Honda City Prosmatec 2017 model tuning including cat cleaning. I have observed that the car ride has become smooth and light but the fuel consumption has increased which is giving me headaches. I usually fill my half tank 15 -16 L on average giving me a range around 260-280 km and getting a trip of 220-230 km in return before tuning which is understandable. But after tuning, the car gets on reserve giving a trip of 160-170 km 
. After tuning, I have filled the tank around 3-4 times and it follows the same pattern which was never before tuning. What might the reasons for it ? High Fuel/Air issue ? Or some calibration issues ?
