Can you find out the exact code description? I know you said it was sensor 2,2 but it would help if we had the code. It could be a heater code, or a circuit performance code. Could be as simple as a wiring problem causing you to set the code. When does the code set? While driving or at start up? If you clear the code does it come back right away or do you have to drive it? Let me know and I can help you further with this.