Check engine came on few days ago. I done about 10 on/off cycles before reaching the car was. All's fine once I got to work. After I left, 5 mile after the check engine light came on. Checked it with the OBD2 scanned and detected the primary and secondary 02 sensor malfunctions. I erased the codes and it hasn't returned yet. No change in performance either. I'm driving a D16ya SOHC vtec