Be nice to know a little more about your vehicle...if you want any form of helpful feedback. What year, mods (engine, performance, electrical), anything unusual b4 code appeared (running wise)? The more you provide, the better the response(s)...
I have a 2007 f150 4.6L 4x4 with p2198 also and also have a battery light on but it's brand new any ideas I switchd o2 sensor bank 2 sensor 1 already with another o2 sensor doesnt go away any clue?