Mass air flow sensor

[RH Jr]

Does anyone know if replacing the mass airflow sensor on my 2015 Sierra 2500 HD with a K&N air intake stop my check engine light come on? Or can someone recommend a replacement sensor for it? 

[CamGTP]

Well you never said what the check engine light is coming on for.

 

Check engine light codes will have a number, so what is that code number you are getting?

 

And each code number has a diagnostic chart that can be gone through to make sure you are doing the proper repair and not just shot gunning parts at the truck.

 

Also K& N filters on MAF vehicles has always been stupid in my eyes. The versions that are oil filters are nothing but problems because over time the oil wicks off the filter and starts to cover the MAF sensor wires, thus leading to sensor failure and incorrect readings. There is a reason by OEM's use dry filters on all cars, because they work time and time again.

[RH Jr]

I’m getting code P11CB. The K&N air intake was on the truck when I bought it. 

[CamGTP]

Did you google that code?

 

It's for a NOX sensor on a Duramax Diesel. Has nothing to do with a MAF sensor.