I got a P1150 code in my scanner. It says "Air/Fuel sensor, Circuit range/Performance (Bank 2 sensor 1)".At the web I have found (Bank 1 sensor 2). Which one is correct? May I as a DIY fix this problem? Where can I get the Sensor Catalog number and where can I buy it? Where is located the sensor and how it is replaced? Somebody knows anything? Help is aprecciated.