I'm a noob and need help with a idle problem

[Blkjack]

Can anyone tell me the name of the part I need to replace that controls the idle. I'm told it has to do with the gas pedal. The idle over revs at about 2k. I get it adjusted a day later it returns to 2k. Registered in Philippines as a
2012 4 door.
VIN#KL1FS6971CH203284
I'm in a remote location in Southern Mindanao, Philippines and have limited everything for repairing, so any help would be great. Is there an after market replacement product?

[Eg.h2o]

For a 2012 vehicle I would into “Chevrolet Sonic” forums even though most of the rest of the world still called it an Aveo.

[Blkjack]

the car says it's a Chevrolet Aveo That is why I am also confused. this is why I included the vin # so those that know how to read it can help me. I hope someone can

[Eg.h2o]

Yes, in most of the world the car you have is badged as an Aveo. In North America and some other parts of the world the same car is badged as a Sonic.
The forum listed below would be a good place to get answers.
Sonic Owners Forum
There are three distinct versions of the Aveo
first version. T200 MY2004-2006
second version T250. MY2007-2011
Third version. T300. MY2012-2020

The T300 is the final style starting in 2012 and is badged as an Aveo or Sonic (unless you’re from Australia, there it’s a Holden Barrina).
This forum is mostly directed towards the T200 and T250. The other forum listed above is geared towards the T300 (your car).
I hope this helps.
Good luck

[Blkjack]

Thankyou for the clarity and help