My vehicle does not eat gas.

hi, i have peugeot 407 2.0 auto gasoline / lpg car. he did not eat gas on take-off, after a while, he grasped and accelerated. I cleaned the vehicle's butterfly, and the coil and spark plugs also changed. but my problem is still not gone. At first I had a movement problem, but after moving after the repair, I have the problem of not eating gas. In order to get the performance I get at 3000 rpm, the tachometer goes down to the bottom, where else might it be, I would be glad if you helped. I couldn't find a master who understands.

Show the clutch lining a.

The answer to this question is a little difficult for the master. For example, the low air in my car, the smoke air is in the air, the black air flow meter is out of control.