Hello Family.....I have a 98 GS300 with gte block,na heads and 62/66 precision billet wheel,750cc injectors,upgraded fuel rail and pump. Car idles roughly after warm up driving and usually clears itself up within a minute or if I disconnect the negative battery terminal. (lopes like I have huge cams). I am wondering if this could be tps or idleair motor related to carbon buildup because I have not installed turbo blanket and the throttlebody is receiving a lot more heat than it would otherwise. I need to find out how to check to see what the problem is before I purchase another throttlebody. Thanks for your help in advance