Hi,
The code simply indicates the converter is no longer doing its job. Did you reset or clear the code? It should reset itself after three consecutive ignition cycles without a problem. Are there any other codes stored?
Since everything is new, we may need to confirm the sensors are working properly. There could be a wiring issue.
Take a look through this link. It explains what to test.
https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor
Let me know if you have a live data scanner and if there are any other codes stored.
Take care,
Joe
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Thursday, November 4th, 2021 AT 7:45 PM