warm idle 1500 rpms wont go down.

[jondee86]

Normal operation of the AAV will lift the idle speed to 2000-2200 rpm
on a cold start, and then drop to 800-900 rpm as the engine reaches
operating temperature. This should take no more than 5 minutes or
2-3 km of driving.

In Malaysia you do not need the cold start idle up system (AAV).
You can disable it, either temporarily or permanently, as outlined
above. You can also disconnect/plug up the water heating system
to the AAV. Many people have done this, and their cars start and
run just fine

Do this first, and then see if you still have a problem. Maybe you will
have to adjust the Idle Speed (air bypass) Screw to get the warm idle
speed to 800-900 rpm.

Cheers... jondee86