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Nox sensor


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My 2020 Duramax had less that 500 miles on it when the engine light came on. Took it in twice for the same code and it was recalibrated, the light is on again with the same code. Anyone else having this issue?

Posted

Yes there is another post about this.  There has been a recall now.  They will need to reprogram 

Posted

Welcome to the wonderful world of diesel engine emissions problems.

Posted

Had the same issue once with my diesel Cruze.  They replaced the sensor and all has been good so far 50k miles latter.

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