Installed oil catch can - CEL light came on

[magagal]

2016 114K miles. Should I be concerned? It makes no sense why there would be an issue other than the system being ultra-sensitive. Should we ignore it or bypass the catch can, get the tune and try again? Any experience with this? (I tried finding an existing thread on this topic and nothing was obvious).

 

[Tremper126]

It’s a common occurrence with this mod for some reason. Some haven’t had a code but most do. Some have found oversizing the lines have helped the code

 

[SeanPwnery]

Question, what line did you install the can in between? I'm considering doing this on the PCV side of the system since my tune already closed off the EGR.

 

[Tremper126]

I’m unaware of anyone who has done it on anything other than the pcv side as the idea behind it is to stop oil from cycling through the intake air side of the turbo.