I was changing my plugs and wires today when I noticed a fitting just to the right of the throttle body that looks like it is supposed to be connected to something. Does anyone know what I am missing here? I bought my 4Runner back in September, so I have no idea what the original owner might have done. Any help is appreciated.

 

from that fitting there should be a line taht goes to your pcv. is there an aftermarket breather there? either way it is sucking in unmetered un filtered air. you need to plumb that asap.

 

bigger pics?

 

i was wrong.. i see your pcv line can you get bigger pics? on mine, that one line coming straight out in the second pic is hooked up to that barb.

see here....

 

see if these are any better for viewing

 

I figured it out. The line goes into the intake silencer. I found some hose in the garage and connected it.

 

that be your fuel pressure regulator line