I upgraded from an HMF Optimizer to a PCIII. I'm running an HMF Competition full exhaust, pro design intake, k&n filter with outerwear. I've tried the standard HMF map plus a few others and am always running lean. I've tried adjusting the low-mid-high on the PC and still run lean. I'm also getting some popping on decelleration, not really a backfire but just popping and I really never noticed that before. Any help or different maps would be muchly appreciated. Thanks.