I initially plugged it in and it didn’t turn off the code immediately. I took the neutral off the battery and let the truck sit for 15 minutes. The light went off . Not completely convinced of my success I went to auto zone to have them test it. No CEL , however the system was still detecting an open circuit in the exhaust system. Which the Exhaust valve simulator is supposed to close the circuit simulating that the stock exhaust is still connected. So I went back under my truck at 9:15 PM EST pitch black and took the zip ties and electrical tape I had put on to protect and secure the simulator.I unplugged the simulator and replugged it back in . This time it clicked into place which I did not hear the first time but admittedly I was watching my toddler while trying to install the simulator. Hopefully the click was the simulator seating properly in the female socket. Sorry for my long winded post but this was my struggle. Hopefully this worked and this problem is in the past .