As you can see on the 3rd line there was (or still is) some sort of checkvalve. What does each one connect to?

 

Hey! Don't let me down here...I need help.

 

It's for the secondary double throttle hold off.
I assume you have deleted that.
It's a good place to connect your mechanical boost gauge.

 

The one on the right side of the UIM, just before the LIM, goes to a tee, to the waste gate, and to the pressure sensor (through an orifice pill).

 

OMG I am soo saving this thread!

I am getting my engine back from rebuilding and have to put the vac system togehter and I've never done this before!

Oh yeah the boost sensor line had that Restrictor pill note on it.

What is that? My S4 NA blocks line is too hardened to use. I'll be usuing some silicon vac hoses. Will there be any ill effects?

 

curious myself

 

Hey NZ could you possibly show us the same pic but before you modifed that?

I think that would be an extremem help to understand what is removed compared to the simplistic version.

Thx.

 

I agree, that would be MOST helpful.

 

Secondary injector air bleed. The angled one below it is for the FPR. I'm not sure what the other one is for.
Top to bottom: fuel injector air bleed, oil nozzle air bleed, thermovalve (double throttle system).
BOV.

No, it goes to the BOV. The pressure sensor line comes off the AVC and has no tee in it stock (common place to tee a boost gauge in). If the ACV has been removed it's common to tee the pressure sensor line into the BOV line, but this is not stock. The wastegate is completely seperate from any of this.

FSM page 4B-5 (S4) or F2-7 (S5).

 

Cool, thanks. but why is mine like this when in the FSM it is just a single nozzle coming out? Jspec differences?
So, in my case seeing this hose runs between the two injectors and then comes out the side (like I pointed out in the picture Motor2b) I connect that nipple to the top nipple on the Throttle body right?

I noticed maybe an error in your diagram, juts a labeling mistake perhaps. I think you mislabeled the oil injector air bleed and the thermovalve.

Just curious but speaking of the thermovalve (double throttle system), I did the TB mod, what do I connect this air bleed to now?

 

Forgot to say, since I removed the OMP I should just cap off the oil nozzle air bleed right?

 

Sorry, forget those last 2 posts, I am starting to figure this stuff out finally. There is no error in the labeling, I just don't have the engine here with me so i am trying to do this by memory.

 

Does this look OK?

 

I'm putting my engine together tonight so just a recap.

My engine is a S5 block with S5 Manifolds and S4 TB with S4 front cover and Mech OMP.
I will not use my ACV and Airpump.

--Where does the FPR line from the Secondary rail go to? It's kind of hidden in that pic. Also the Secondary injector bleeds seem to go to the same spot.

--The front part of the UIM Vac hoses are plugged but one looks like it wasn't edited enough or it's supposed to go somewhere?

--Anything different for Vac between S4/S5 OMP's?

--The Oil injectors look a little different. Shoudl I use S4 or S5?


An answer was mentioned above but could you explain?
Also they said a Mech boost guage can be used through that one. The bottom one or one of the others?

Thx.

 

It goes to the angled nipple on the inside of the LIM.
No, they go to the top nipple on the rear of the UIM (#1 in the photo).
Follow the red arrows...
On the rear of the UIM, the only one that is fed from after the TB is the bottom one (#3 in the photo). That could be used for a boost gauge.

 

Ok so that's part of the twin scroll.

 

I plan on keeping the charcoal canister after all. There are two hard lines that come off the purge valve that go who knows where. I am thinking to maybe on the left side of the throttle body. I circled in red where I think that they may go. Also, in that picture, are only the two bottom lines capped off? Where does the top one go to? Thank you in advance.

 

you rock!

 

If you notice I asked the same question above about the front lines.

The one with the red arrow is for the twin scroll.

Not sure about the purge valve one. I haven't gotten that far in my installation.

 

Go to page 4B-88 of the FSM (EFI chapter). The diagram shows how the charcoal canister and purge control valve are plumbed up. Where it shows two lines from the purge control valve connected to the TB, that's the middle and bottom nipples you've circled. The middle one is before the throttle, the bottom one is after the throttle.
The top nipple normally feeds the twin-scroll system and the switching solenoid valve. It's capped if you're not keeping the twin-scroll functional.