from what i know it lets more air in to the intake , i know its not a proper idle speed control thing , but it does help abit to stable your idling . the stuff cost 10 to 13 bucks only . :lol:
oh yea 1 wire is to tap on the aircond fan , so when the aircond is switch on , the vaccum solenoid valve will open to let air in .
oh yea 1 wire is to tap on the aircond fan , so when the aircond is switch on , the vaccum solenoid valve will open to let air in .