At the moment I'm setting up a simple cold start setup on a 1JZ running a Microtech similar to yours but won't be using the Microtech for the cold start control as we've already used up all the auxillaries for other things.
Just going to use a solenoid to bypass the throttle for cold start and a thermatic switch temp sensor to control when it opens and closes.
Other than that I don't expect to have any other idling issues with the Microtech as all the other cars have been fine with them at operating temp.
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