Emission Light

[Hud]

Changed the factory exhaust tip to a Banks after market and the emission light has been on. Any thoughts or concerns I should have?

thanks

 

[TheBac]

Year truck? Mods? What are the codes? Need more info. We arent standing there with you....

 

[Hud]

2020 Chevrolet 2500 HD Duramax No codes. No mods. Emission warning light only

 

[2004LB7]

Unlikely related but like Tom said, without being there or any codes we can't do much

 

[Hud]

No codes displayed only emission light.
Thanks for response.

 

[gmduramax]

There’s is no emissions light. Do you need to add def fluid?