Reset codes via scanner and battery.
P0031 and P0051 codes and CEL pop up within a minute of start up. Drove 10 miles. P0031 and P0051 still present. Shut off and got lunch.
Drove another 50 miles at speeds up to 70 MPH. Mostly around 60 MPH. 'CHECK GAUGES' light comes on and and P0135 and P0155 codes pending.
Parked now. Runs fine. Idles fine. No apparent performance issues. Misfire gone but now this O2 sensor issue.
P0031 and P0051 codes and CEL pop up within a minute of start up. Drove 10 miles. P0031 and P0051 still present. Shut off and got lunch.
Drove another 50 miles at speeds up to 70 MPH. Mostly around 60 MPH. 'CHECK GAUGES' light comes on and and P0135 and P0155 codes pending.
Parked now. Runs fine. Idles fine. No apparent performance issues. Misfire gone but now this O2 sensor issue.