My 2011 750 began having issues this weekend. It feels like an ignition / fuel-mapping issue with throttle response being very abrupt/inconsistent. On the track under acceleration initial throttle felt dead, followed by a distinct surge / rapid increase in acceleration. Overall, doesn’t seem to be running well and I’m getting FI codes C33-C34-C35 (Fuel Injectors 2-3-4). I have been using the Bazzaz Automapping feature and I’m told that the O2 sensors wear out quickly. My first thought is that my O2 sensor has crapped out and created a bad fuel map, however is it possible that a bad fuel map would result in the FI codes? I ran the Bazzaz software diagnostics and it’s showing both the O2 sensor and the TPS as “OK”. Is there another way to determine if the O2 sensor is bad? Any guidance will be greatly appreciated!