About a month ago my AFR gauge went from being in optimum to Lean. Optimum is at about 14-14.8 now it is blinking a max at 20. I was wondering if there is a way to check my AFR without using my gauge. I have an access port with the newest version. My mods include, Hks turbo back exhaust, k&n typhoon short ram intake, and upper intercooler pipe. I think my gauge might be broken. Sometimes the gauge will still move when i turn the ignition off.