I previously posted about some engine codes i got for the o2 sensor heater circuit going wrong but i ran into in issue when changing the Bank 2 Sensor 1 it marked , it isn't there ...... the truck has obx long tubes and when i check for the sensor , there is just a bolt covering the hole where it is .In the photo below the long part is the header and the square i drew on top is the nut bolted in place of the o2 sensor that was marked bad.
