badjuju Posted March 18, 2006 Share Posted March 18, 2006 I am about to start my ms install, and I have no idea if i have an IAC. the first time i remember reading about it was when i looked over my 2' wires from diy: http://www.diyautotune.com/catalog/megasquirt-wiring-bundle-long-p-102.html I can't find anything about an iac being in my car... Quote Link to comment Share on other sites More sharing options...
mobythevan Posted March 18, 2006 Share Posted March 18, 2006 The zxt does not have an IAC(idle air controller) as far as they are talking. To them (DIY auto) an IAC is either a stepper controlled or PWM idle air controller. The zxt has the AAR (auxilary air regulator). That is the bosch part with 2 pin connector and coolant running through the base. It only needs a 12volt signal while the car is running and then the bimetal valve slowly closes as the coolant heats up. It gives you a real basic fast idle function. My car worked great with it, but I did not have AC and other things that drag the idle down. Quote Link to comment Share on other sites More sharing options...
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