j cAT sorry for mis-type the code is 1133 not 1130, i replaced both up stream sensor and fuel regulator back in March this year, and the code came back right afterward, so I replace the drive side up stream last Friday thinking it may be defective, drove all weekend and it came back today. On the same note yesterday i drove through carwash and as i was going through the dryer the service engine light started flashing.check it and code P0300 misfire on the drive home went away, today P1133 came back.
Thanks in advance.