ive had my mazzuri on for a few months now and never really got around to installing the o2 simulator until now since i have to get my emissions checked. i took it to the shop and we followed the diagram found here on the form and all the wires are plugged into the same spot. double checked to make sure. checked all the wires for power also and there working fine. but when we plug in the scan tool it still picks up a o2 sensor malfunction from bank 2 sensor 2. so we cleared it but it just comes back on. has this happened to anyone else? what should i do? did i do something wrong or could it be a faulty o2 sim?