So i keep getting an o2 sensor code in my 2006 dodge moose. i tried replacing the sensor and the sensor got seized in its bung. literally i cant turn it either. so i tried welding in a new bung with new sensor and i keep getting the code instantly after erasing it. i cant remember the code number but its Heater circuit, Bank 1 sensor 1. i looked through the exhaust section and was unsure if the 1500s were different or not from the moose. any suggestion?