Seriously RawFay .. drive on petrol for a week and it'll disapear !! WOW man hope thats true. dun wan sum mechanic to fiddle with my car's tappets, heard they are alot and its a serious job
About the idle speed thing, i tried with AC on and adjusted to a point where the car doesn't die, tried various settings took me an hour just to set the idle, it vibrated, then in D n R with brakes applied it used to vibrate and shut then only vibrate alot , now with D n R with brakes applied or at P it's smooth with AC and hence its smoother without AC. So at this point, the idle is only 25%open with both the lights green, also like i said earlier the idle could be increased more but i've set it to a point where the vibration is gone cos if i close it more the idle increases but when i try to drive it shuts off.
I used to drive non efi car and always thought like in other cars, when you turn on ur car the rpm increases for e.g 500 on petrol and to 1000rpm with ac on idle. But in Vitz i dont think the rpm increases, right ?
About the advancer you are right, it's green colored tomasetto advancer, if i completely close the idle the lights go red, if i completely loose the idle they go red, when adjusting the idle in middle the lights change from red, to orange to green, . hope this helps you understand what i have.
Thanks Dude,hope to hear from you soon.