like the ones that are blocked off in these pics

http://www.rotaryresurrection.com/ro...s/image026.jpg

http://www.rotaryresurrection.com/ro...s/image030.jpg


Anyone can tell me kindly what they're used for?

i can't find them in the FSM. i've already removed all the emission crap and all, so i wanna know if i need them just incase they're for stuff like fuel regulator and such :P

TIA

 

They are all shown in the FSM...

You haven't told us if this is S4 or S5, and neither does your profile. It makes a difference to the answer.

 

which section in the fsm....i couldn't find it..

it's for a jspec s4

 

On a S4 JDM the only VAC nipples on the back of the UIM is the Oil injection bleed valve and the fuel injector bleed line. The large hose is the oil injectors on the top and the small one is for the fuel. Yes you need them.

The large one comes of the oil injector vacumm spider. The small ones comes off the block in the middle way down there hiden under the oil injector vac lines.

 

Chapter 4B, specifically pages 4B-2 and 4B-5.

That's what we needed. Note the FSM is for US-spec cars and there are some minor differences between the J-spec and US-spec engines, like for instance the FPR is on the primary rail, not the secondary rail as the FSM shows.

There are two nipples on the back as iceblue described, the big one is for the oil injector air lines, the small one is for the primary injector air bleed line. I advise you keep both. The primary injector bleed is the nipple that sits inbetween the oil injectors on the LIM.

On the front there are three nipples. The top one goes to the the relief and twin-scroll solenoids via the metal vac rack. The middle and bottom ones both go to the purge control valve.

There's an error in the FSM vac schematic. It shows the FPR solenoid being fed from the same nipple as the relief and twin-scroll solenoids, but it's actually fed from the angled nipple on the inside of the LIM. If you remove the solenoids you must make sure you reconnect the FPR to that nipple.

Feel free to ask any more questions you have.

 

well...i don't need oil injection....i removed everything i could even the omp. it was leaking i think. so i removed it.

what's akward is, i have 3 on front and 3 on rear...

i think the middle one on the rear is the slightly bigger one iirc

 

Just cap it. With evrything removed like you said you only need the following.

Injector bleed small nipple on back of UIM.
Cap the other 2 and the larger one to the top "turbo side" of the LIM.
Brake boosted line top of LIM.
PS,BOV "turbo side" of LIM.
FPR angled nipple on inside of LIM.
If you have the Twin Scroll still I used the 3rd nipple TB to the silinoid and then to the twin scroll silinoid on turbo.
The other 2 nipples on the TB I use for gauges.

 

*****On the front there are three nipples. The top one goes to the the relief and twin-scroll solenoids via the metal vac rack. The middle and bottom ones both go to the purge control valve.**********************

Tsk, tsk, tsk. What is it they always say? If you don't know for sure about what your writing about, DON'T POST! (humor, trust me, humor).

That quote above is wrong. Can anybody tell me why? Wrong, wrong, wrong.

 

well....the biggest problem is, mine is a jspec s4, so um...some of the stuff might not apply...

gonna try n look at that fsm like nzconvertible listed, see if i could find n e thing heh. thx

 

Times out. The Relief solenoid on a turbo does not use/get vacuum. He meant Switching solenoid.

 

Cap the big nipple then.

That's strange, my 88 J-spec only has two on the rear. Other nipples on the back are for the secondary injector air bleed (which S4's don't have) and the double throttle vac actutor (which J-specs don't have). Odd...

I hope you used the check valve too, otherwise your twin-scroll system is not working.

Hailers must've had a moment of clarity. He's right about the switching solenoid, my bad.

 

baaaaaa. i just said screw it. lol

the whole jspec vs usdm **** makes me need to follow all those lines that are like all bundled together, it's almost impossible to follow them once they enter the mess of vacuum hoses. i just connected it all


car finally fires up after about 4 months. but now i got another problem on my hand lol.

i originally thought it was my clogged cat that makes my car not wanna idle for longer then 10sec, but now it still doesn't idle for more then 30sec. arg...i don't think i've missed any vacuum hoses or anything. everything is hooked up the way it should be, but it cuts off like right away once it wants to die off. no studdering or anthing. plus it still has light white smokes coming out dunno if it's the turbo or engine. or just the oil inside since i put about 3oz of premix in to a quarter tank of gas.....fock

 

Oh yea of course my nipple is leading to the silinoid "electric one" with the check valve and from there to the TS. If I was unclear sorry and thank you for clarifying it for the others.