ruggerisa

Hey guys, I recently just installed QTP long tube headers and y pipe without cats and electric cutout. I had the car tuned with the cutouts closed and it was running great. About a month later it through a p1153 code (heated oxygen sensor- Bank 2 sensor 1 insufficient switching), I switch the front o2 sensor and cleared the codes and about three weeks later the same p1153 code came up. I never changed the sensor or did anything and about a week later the check engine light went out, then the fallowing week the light came back on. Should I be looking somewhere other than the sensor to fix the problem?Does anyone have any ideas that could help me?