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2005 AV 1500 P0054 P0141 Changed the 02 sensor dash light won't go out

gabrielassoc

New Member
Joined
Oct 30, 2019
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1
So I have 05 LTZ 1500 Codes came up P0054 P0141 I changed the sensor cleared the computer codes and no sooner I start the engine the check engine light comes back on.
I checked the fuses all good the harness is good as far as I can see and trace.
I have to get an echeck in 10 days help!!!!
Love my truck 200,000 miles no rust at all. Best truck I have ever owned.

Thanks
Shannon
 
https://www.obd-codes.com/p0054
Is for Rear sensor behind Cat on Bank 1 side (Driver)
This can give code when front sensor is bad.
Read this one as it gives good info on how to trouble shoot.

https://www.obd-codes.com/p0141
Heater for BAnk 1 rear sensor...

Did you replace correct O2 sensor?
Maybe bad replacement o2 sensor?
When was last time you replace all o2 sensors?
 
gabrielassoc said:
So I have 05 LTZ 1500 Codes came up P0054 P0141 I changed the sensor cleared the computer codes and no sooner I start the engine the check engine light comes back on.
I checked the fuses all good the harness is good as far as I can see and trace.
I have to get an echeck in 10 days help!!!!
Love my truck 200,000 miles no rust at all. Best truck I have ever owned.

Thanks
Shannon
Are you sure the harness for the O2 sensor behind the cat converter isn't damaged?  If all looks good you can try replacing it.  But make sure it is the one behind the catalytic converter (not in front).
 
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