When converting to single to you keep the PVC or do you cap it off? I see that it hooks up to the UIM to oil filler neck, and the manual shows it running to the intake ? Could i just run it to the oil filler neck and be ok?

What does the two ports on the oil filler neck go to? One to the PVC, what does other go to (air filter)? My single turbo doesn't have any ports before the compressor. So should i cap all it off?

 

You mean pcv and you can eliminate it and go with a vented catch can! I run a vented catch can becouse i dont want crank case gasses run back into the intake.

 

Cap it off on the UIM. Take both lines from the oil filler neck to a catch can and then vent the fumes under the car. Empty the can frequently in winter.