Do not eat cold misfire gas in the morning

friends, I know there are many issues related to this, I have examined them all but they all talked about the problems in autogas-connected cars.

my car peugeot 307 xsi gasoline no autogas was installed in the mornings, when the engine shuddered in the mornings, even though I did not press the gas, it did not eat gas for 1-2 seconds and then it took off the gas at once.

I had a problem like this before 2 months ago, I had the disassembled and cleaned the throttle, etc. I cleaned the sensors inside and it was over, but it started to be the same thing before 2 months.

Could it be again from the throttle? Can the throttle and its sensors get dirty and give this problem after 2 months?

thank you for your help