QUOTE(khenghan @ Mar 24 2011, 12:21 AM)
4get about aircon kick, coz i also dunno how to say in here hahaha...
i tuned it to 1.5k and feel it give more power!!! but the idling get higher, from 700-900 become 800-1100. Is this normal?
can u tell me which tuning method suit for city drive with heavy jam and going uphill like genting? wanna play around with this interesting TAB

The idling went higher should be normal and it will slowly goes down around 1k or below after few hours of driving.
For city driving and genting is tune to 1.5 to 1.8 setting range. But you might lose out on top speed. Lets say you tune 1.8, go up genting very fun every step of the pedal bring adrenaline but once came down genting, straight highway you probably cant go faster then stock as too much air and limited fuel going in.
To get best of both world, best top speed and pick up, is at 1.0 setting for myvi. You can go abit higher say ,inbetween 1.0 and 1.8k , to suit your driving.