2005 Chevrolet Tahoe LS 8 Cyl 5.3L - Engine
Check engine light is on..as per auto zone folks is P0140..oxygen sensor bank 2.
I replace the sensor twice but light is still on with the same code. i disconnec the battery for 12 hrs hoping it will reset the code but no luck. i went to mechnic shop and he used the new device and showed me the code it says pending state , as per them it is trying to reset the code and it is in pending state and he think there is nothing wrong with it , he suggested to use Supereme gas and drive on the highway for 30 to 40 miles and it should reset, but no luck either? any idea or suggestions?