JDMmuscle

iTrader: (9)

I have some Vacuum questions. Im having a hard time figuring out what goes where and how you routed your lines. What were the vacuum source's for each. I already have the factory vacuum diagram. Just a little advice would be nice. If you have a boosted 1uzfe, i would like to hear what you did for these areas of the car.


~evap system
~vent lines to gas tank
~fuel pressure regulator vacuum solenoid
~where the 3 lines go to that go into intake pipe


and any other advice on the vacuum system


This is literally the only thing holding me back from driving the car

JDMmuscle

iTrader: (9)

Damn nothing huh?

MMCtuner

In the build threads I´ve seen they never talk about vacuum lines. Is there a need to mod that?

Ali SC3

iTrader: (10)

I know I dont have any boosted 1uz experience, but to delete the evap system is more or less universal.
rip out canister, connect tank vent line (larger hose) to the vent to air line (underneath canister on the sc300), you can put a fuel filter inline here to keep the smells down from venting tank to air.
take out all the left over vacuum hoses and cap everything off at the vsv's and ports, or rip out those vsv's altogether and cap off further back.

stock FPR is usually ok with boost, I would connect this to your intake more or less how it was with the stock IM.

not sure exactly the 3 lines you are talking about but if its the stock intake pipe, one of them is probably the vac line that goes to the power steering reservoir and one probably went to the crank case vent.
where you route these depends on if you are still using the maf, or if you are running a map sensor it would simplify the routing.
do not connect the crank case vent to anything that will ever see boost, you probably already know that.

do you have a pic? probably more people would chime in.