Chevy equinox 2011: code p0420

[americanfoxusa]

I'm having trouble understanding this issue. I don't want to change the cat so... I've read about being the sensor # 2 on bank 1. Any help???

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[sdhow]

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Bump. No one answered this post.

 

[maxpg]

Manual says:
P0420 due to out-gassing of the internal matting. Operating the vehicle at
highway speeds for approximately 1 hour may correct the condition.

And also:
Inspect for the following conditions, which may cause a catalytic converter to degrade:
 An engine misfire
 High engine oil or high coolant consumption
 Retarded spark timing
 A weak or poor spark
 A lean fuel mixture
 A rich fuel mixture
 A damaged oxygen sensor or wiring harness