I'm having some idle issues with a 2.5 hybrid in an 03 wrx. I am having issues getting my O2 sensor to work properly so i'm using an Innovate and have closed loop turned off. if I get the car to idle around 14.7 with the fans off, when the fans turn on it goes super lean. if I get the idle @ 14.7 with the fans on it drops to 12.5 to 13 when the fans turn off. what am I missing?