Originally Posted by GenXr
What is the TVV in the bottom of the diagram, and why isn't the brake booster and PCV valve identified on that diagram?
The TVV circled in blue notice the two lines running to the right stacked on top of each other ,it works with the idle up for AC when you turn on the ac it kicks the idle up so it can keep the engine idle where it needs to be so it don't die out
As for why there's nothing on the brake booster and pvc I don't know other then to guess it's because these are all the vacuum lines running off the little vacuum line hiway that connects hose to pipe from one end of the motor to the other , I guess for the true answer it's is going to be a engineer from Toyota to give that to you but if you need them let me know I have or can get pics of them for you as well.
1990 4 runner 5 Speed
Pro Comp Stage II 4" Lift 6" coils rear
Aussie Locker front
5.29's Front And Rear
35 x 12.5 x 15 MT's Micky Thompson Classic II Wheels
Super Charged 3.4 on the way
1993 SAS 4runner 22re 5 speed
4" front 5"rear
35 x 12.5 BFG KM'S
Dick cepek DC 1's
88 stock 4runner