Tuning my buddies 2014 Silverado. Got all the fueling to -1 to 0 on MAF and VE. Set PE to 1.20 just to start somewhere and it was reading .80 on the wideband . Next time around set to 1.175 and it was still reading .80 on the wideband. After that I had to call it a night but just wondering if Im missing something. Also, what kind of values should I use for PE delay and PE enable? couple more options compared to Gen 3 and 4. Thanks