[Gmecm] IAC / AIS Setup - $8D/7730

[Robin Handley]

FWIW I find that I don't miss not having an IAC to keep a stable idle. I've 
manipulated the ignition map so that there's a localised SA peak at my 
desired idle RPM (e.g. 1000), and the SA drops at RPMs below and above that. 
The idea is that increased SA lifts the engine speed up to 1000, and if it 
goes past 1000, then the reduction in SA causes it to drop back. Seems to 
work quite well, and doesn't compromise the driveability of the car. Not as 
sophisticated as IAC, but easier to set up!

http://www.furyworld.fsnet.co.uk/Images/XE_Ignition_Map_8Jul06.gif

Robin