PCV routing??

Hello I’m just wondering how did you guys run the PCV system on the LS engines, catch can? No catch can? What type of covers are you running? What is the routing like?

i have truck covers lq4 in mine with stock PCV system No catch on mine . i put the PCV on the drive side valve cover and send it in the intake just after the throttle body , passenger Cover is pluged in the intake just after the TB also !

you shouldnt have both valve covers hooked to the intake manifold, thats not how a pcv system is supposed to work. you want one valve cover to be hooked to the intake manifold (typically the drivers side valve cover has a line that routes around to the port on the drivers side of the manifold just behind the throttle body, and the other valve cover hooks to the air intake between the maf and the throttle body. its important that you dont run a breather filter on the valve cover, when you do that you are pulling unmetered air into the engine and it can cause the ecm to set lean codes and the fuel trims get out of wack. the pcv system needs the inlet source to be metered air, hence why you plumb it in after the maf sensor.

Check out Mighty Mouse Solutions for a catch can, He's an LS Sherpa and just released a new version of catch can. The instructions are super easy to figure out and if there is any confusion he can get you squared away in no time.

I run this catch can from Saikou Michi. Works great!

[You must be registered and logged in to see this link.]

[You must be registered and logged in to see this image.]