fuel pressure regulator vacuum diagram..

[78F350]

Hope this helps visualize...

Originally Posted by 78F350

In regard to the vacuum connections, here's that diagram, created with actual parts from a scrapped 2001 2.7L.

Notes:
-This picture shows what connections have to be made, the actual order of connections to the Y fittings (I) and (G) are not critical.
-The Tiptronic cars will have a 4-way connection at (I) or (G) with a line running to a changeover valve on the transmission.

It looks like a mess of tubes and parts, but in function it is fairly simple.
This shows 3 vacuum powered components: SAI, Resonance Flapper, and Fuel Pressure Regulator. Brake booster vacuum system is not shown.
SAI: Vacuum source -> electric change-over valve (E) -> change-over valve (D).
Resonance Flapper: Vacuum source -> electric change-over valve (J) -> vacuum unit (K).
Fuel Pressure Regulator: Vacuum source (B) -> Pressure regulator (C) -> injector valves (A).

Rubber sleeves (L) and (B) are the source of vacuum from the intake. (H) is a check valve. (F) is the vacuum reservoir.

From the right rear of the engine looking forward under the intake:


Looking down to the right side of the engine with the front cross-tube removed:


From the front of the engine looking back under the intake:


I buy this with a 3.5 or 3 mm ID and use it on a wide variety of cars with fittings from a local auto parts store to connect them or cut scraps from old tubing to connect.

[jaimster]

great .
I actually ended up removing the intake wanted to get a better view on things !!

found all the small vacuum hoses broken from reservoir, change over valve, injection check valve a mess all over pretty much .. lol

also, found some hoses at Oreilly's small plastic hose and large one I m thinking of using it fits great into the " Y" connections.

list of parts to getting :

long AOS vacuum hose to PVC found broken connection or NOT sure if I broke it ! anyways Im buying a new long hose found it at AutohauzAZ.com for 32.00
. Intake gaskets (3) 23.00
.check valve 15.00

parts from europarts.com change over valve 28.00
fuel injector lower O rings $ 3.0 or SHOULD I GET THE KITS ??

SHOULD I GET THESE PARTS ??: vacuum reservoir 21.00 , air injection check valve 135.00 these parts are right there underneath next to each other...

your thoughts ??