O2 Sensor Code P0161???
Thread Starter
Burning Brakes
Joined: Aug 2013
Posts: 952
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From: Lehigh Valley PA
2022 C5 of the Year Finalist - Modified
O2 Sensor Code P0161???
I pulled first code today? But when I pulled the code, I had a H & C. Never has check engine light come on before. Do I reset and see if it comes back on? Unfortunately at specialty Vette shop now because it started after I took it in for something else, coincidental? (original is was starting issue)
How can you tell if it's one or both sensors? Do I ask for them to return if I ask them to replace?
How can you tell if it's one or both sensors? Do I ask for them to return if I ask them to replace?
Last edited by 57gman; Sep 22, 2022 at 09:00 PM. Reason: typo
Moderator, Tech Contributor
Joined: Sep 2013
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From: Cape Coral, Florida
I’m looking at Alldata for a ‘97 and it is Bank 2 Sensor 2 which is passenger side and the sensor aft of the CAT…it is a specific O2 sensor and only one and it is the “heater” circuit of the sensor which may be defective…your Corvette shop should know how to diagnose this in less than 5 minutes…they should be checking for power to the heater circuit and ground and measure the resistance of the sensor…should be 3.5 to 14 ohms…I had an 01 Toyota Tundra in my home garage yesterday for a similar DTC and it had a good power and ground however the sensor read open (OL) when checking its resistance…a quick diagnosis.
Thread Starter
Burning Brakes
Joined: Aug 2013
Posts: 952
Likes: 100
From: Lehigh Valley PA
2022 C5 of the Year Finalist - Modified
You Saved Me Hundreds!!!!!! Thank You!!!!
