My 2000 s2000 has been stalling out at idle, seems to be when the temperature outside gets higher. Today is the first 80 degree day in Chicago since i bought the car, and at almost every stop it will die out abruptly. When it was 45 degrees out it would happen every once in a while after sitting at idle for 10 minutes or so. It has a bank 1 lean code that will pop up when it happens but not every time. The car has a comptech supercharger and a haltech standalone. I took off the idle air control valve and its spotless, put new orings on the injectors, cant figure out why its happening. Any insight would be greatly appreciated.