I have a 1998 Mustang, was a 2v auto, now its a 4v with a t3650. I am using the stock 2v and auto computers on a tune to run the car. I need a little help with the drivers side o2 sensor. Passenger side works fine. It does not read voltage nor does send a signal. It has a new motorcraft o2 sensor. I checked the voltage and it is reading 12v when I tested it with a multimeter. Am I missing something with the 2v to 4v swap or the auto to manual swap? I also have a diagnosing tool that shows the o2 sensor as N/A or 0.0v. Has anyone run into this problem before?