ok, here is the deal. i am running extremely rich and my idle is messed up. i have an aftermarket fpr, but im not sure how to adjust it, i think its clockwise is less pressure, but im not sure. as far as my idle goes, it will start surging when it warms up. i have cleaned out the iacv and fitv twice and still it idle messed up. if i unplug the iac however, it idles down but does not surge. does this mean the iacv is bad? i am throwing no cel's. thanks