Idle and fuel problem

Good evening, there is a fluctuation in idle speed in my 98 model 1.6 griffe vehicle when the vehicle is cold, it fluctuates a lot, as if the engine spontaneously gives off gas. When the engine warms up, the fluctuation decreases, what should I do to solve this problem? + I bought 30 TL gas and 50 TL gas as I traveled 36 km, I used LPG but gasoline and gas are almost over, why does it burn so much and why does it run out of gas? My first car, I don't understand much more than this vehicle, I'm learning slowly.

Hello, teacher. Idling problem is usually caused by the idle sensor and throttle. There are a few factors when it comes to fuel consumption, sir. maintenance of the vehicle breathing in the air filter box (affects idling) coil spark plug - the condition of the lining.

Clean the throat throttle then let's look at the situation pevgeot307XT2020-12-14 16:04:46