Hi.
2015 Silverado 2500HD 6.0 Flex Fuel 60,000 miles, Check engine light illuminated.
Code was P0158
Replaced downstream sensor passenger side with BOSCH 15698, towed 100 miles P0156 code returned along with P013C
Checked O2 sensor voltage at idle 0.02 VDC
Checked O2 sensor voltage at higher speed, 0.13 VDC
Returned BOSCH 15698 and installed replacement same part number.
Towed 100 miles, codes P0156 and P013C returned, additional code P2273.
I did notice strong gasoline smell at truck when parked prior to first Code. Figured it couldn't be my truck and moved on. Where do I go from here, Help?
