I've checked and the only CEL I'm currently getting is the rear 02, which is because I have a straight pipe. The issue is my car is running lean at idle, and now when I get into the upper rpm range say 4k it cuts out completely and goes lean. This can be with or without boost. I've replaced my plugs, tested both coils, cleaned all of my injectors, and even attempted to richen up my car at idle but it doesn't seem like it even reacts. I'm on e85 with a double pumper set to come in at 10psi. Any tips?