Generic code. NoX sensor one

[Jefox1968]

I have a completely stock 2013 lml. It threw a generic code last month that said “most likely cause #1 NoX sensor”. I took it the Chevy dealer for a more in depth diagnostic. They came back with a bad injector. The NoX sensor. And 3 glow plugs. My question is this. Could the injector be causing the NoX sensor too be setting a case. If the sensor is bad. Should it have gone into limp mode. It hasn’t. The injector is covered under warranty but nothing else. The glow plugs are easy to change. The NoX sensor is too. But I think there is some reprogramming or something that only Chevy techs can do. Any info would be appropriated

 

[DAVe3283]

If it was me, I'd have the dealer do the injector, I'd do the glow plugs myself (or not bother at all if it isn't cold where you live), and then clear the codes and see if the NOx code comes back. If it does, then throw in the sensor. If not, hey, you're done!

 

[ikeG]

A snap on scan tool can do the nox sensor relearn. I have always done the relearn after changing one so I'm not sure if you could skip it or not

Sent from my SM-G960U using Tapatalk

 

[Blackmax123]

Are they said a bad fuel injector or do they mean the def doser/injector?

 

[Blackmax123]

Sorry just read nox sensor #1. Def doser would have no effect on #1 since its upstream.