2500hd

[JetBoater]

I have been enjoying my duramax performance but this code popped up yesterday... heading into a long weekend and scheduled to drive a few thousand miles on Tuesday.

P202E Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 1.

I know this description relates to the DEF injector circuit, but does anyone know how to begin to service this problem?

[JetBoater]

I found a GM service center on the Saturday, and it was covered under warranty. The Reductant Injector was faulty and replaced. :)

[rapidoxidationman]

Thanks for the follow up info! It's good to have this thread as a reference.