Vaccume line mystery

[willywebster]

Hey im wondering if anyone can assist me, i just did a fuel injector replacement on my 1996 3runner. And after i put everything back i was checking everything to make sure i didnt miss a vaccume line, and sure enough theres a nipple located on the back driver side of the lower plenum that i dont recall taking a hose off.. however it looks like it should have a line connected to it, or be capped off and i can for the life of me figure what line should go to it..
Any help would be much appreciated

 

[2TH4IST]

Just looked at mine, and there is no port there at all.

 

[willywebster]

Thanks for checking! I jave a sneaking suspicion that its suposed to just capped off

 

[willywebster]

Mystery solved! So after getting a cap and plugging that port, i pulled my 4 runer out and while i swept up the garage floor i found a factory cap!! So turns out that port is suposed to be sealed up

 

[phattyduck]

Mystery solved! So after getting a cap and plugging that port, i pulled my 4 runer out and while i swept up the garage floor i found a factory cap!! So turns out that port is suposed to be sealed up

I had originally thought that was the vacuum port for the 4WD VSVs and the throttle body dashpot, but that's up on the upper plenum. Looks like that port is only used on the EGR equipped 5VZs.

-Charlie