Misfire Problem

Peugeot 206 1.4 16V KFU engine 88PS

Hi friends, I have a misfire problem with my car.
The Lambda sensor switch light faded and burned again after 2 kilometers.
There is an open air filter on the vehicle, there is no problem going on when driving, normally the vehicle is very lively at 170000.

The car jumps back and forth only when I depress my foot around 2000 rpm on the accelerator pedal. shaking like a nut.
When I come to light, it seems to stop and stop up to 500 cycles when it stops but it corrects itself immediately.
When I run when the weather is cold, the tachometer always fluctuates between 900 and 1000.

There is absolutely no LPG in the vehicle and it is not installed.

I think there might be a problem with the gas pump

I recommend you to check the teacher throttle - idle valve - coil - spark plug and gas pump. The lambda sensor should have two, which changed.