I recently replaced all 4 oxygen sensors on my 2003 Silverado 1500. I did not disconnect the battery before doing this. I have erased all codes, but I keeping DTC's for the oxygen sensors. How can I fix this problem as I am due for a state inspection.

 

Please post the full DTC's and definitions.
Moving your question to the Silverado section ...

 

I recently replaced all 4 oxygen sensors on my 2003 Silverado 1500. I did not disconnect the battery before doing this. I have erased all codes, but I keeping DTC's for the oxygen sensors. How can I fix this problem as I am due for a state inspection

 

Unfortunately, codes for certain areas do not always mean the parts are malfunctioning or defective. Many time poor connections are involved.

Could you post the codes here?

 

@Larrycarol
Please avoid duplicate posting. Thank you.

 

Definitely need the codes you're getting. Not long ago, I replaced all 4 O2 sensors in my Jeep and it only took a few months for one of them to prematurely fail. So a DOA sensor is possible, but we can only speculate without further information.

 

Here are the codes:
P01 41 $10 O2 sensor heater circuit bank 1 sensor 2

P0155$10 O2 sensor heater circuit bank 2 sensor 1

PENDING CODES:
P0135$10
P0141$10
P0155$10

I tried leaving the battery disconnected for 3 days, but that didn't help.

 

I found a diagnostic procedure you can follow in my FSM. Hopefully this will help.

 

Could you send me page 8-34 in Wiring Systems?

 

Okay, so I got a hold of an Autool Diagnostic Tester. I checked for power and good ground on the harnesses for all 4 sensors.
Here are the results.
Bank 1 Sensor 1 8.8 volts at power and 1.7 ohms at ground
Bank 1 sensor 2 10.8 volts at power and 43 ohms at ground
Bank 2 sensor 1 10.7 volts at power and 44 ohms at ground
Bank 2 sensor 2 11 volts at power and 43 ohms at ground

The only thing strange is the ohms reading for Bank 1 sensor 1.

The only sensor not getting a DTC is Bank 2 sensor 2.

Where do I go from here?