Hello guys, i am writing to you so afar.
My vehicle is 1.4 gasoline aut. Aveo T300. I am having this problem at first starting and I'm having rough idle during the day. Also have stop problem on the lights. What do you think about these problems.

Meanwhile spark plugs and coil are new But no solved.

Adding:

My vehicle's connection with lpg has been completely lost.
When I pull the dipstick, the idling is more disrupted and I hear a hum.

 

torn air snorkel from the filter to the throttle body are common on some model years.

 

Thank you for your answer, I will check this but I don’t have much hope. :/

 

take it off and look at the bottom...it tears from being flexed when the air filter is checked. this tear lets in unmetered air ...ie air the maf sensor doesn't read and creates a rough idle.
no idea you model year...you should include that when posting.

 

Model of my vehicle 2011, I forgot to mention that. Engine code: A14XER

 

the torn snorkels i have seen were pre 2008