2019 CEL but no codes?

[Nado]

Got in the truck this evening....2500 2019 gasser. And s CEL popped up after start up. Plug in my old link and connect alfa. But it's no reading any codes.

Only 38k miles. Never had an issue. Haven't pulled negative terminal yet to reset the PCM...I just am curious how I can have a CEL but not have a code.

Thoughts?
Thanks for any help.

 

[flan]

Any solution?

 

[Nado]

I used the obdlink software and was able to read the codes. Odd that Alfa didnt read them.

 

[flan]

I used the obdlink software and was able to read the codes. Odd that Alfa didnt read them.

What did you find out?

 

[Nado]

What did you find out?

Evap canister leak. I just need to pop a new one on. I cleared the codes for now. Now the stupid check gas cap light is on. Which has to do with the evap canister leak. Should have it fixed this weekend.