alright, i recently bought a used S5 TII longblock to drop into my NA coupe. i was told from the seller that it was JDM. but the fuel lines arent reversed. the fuel line closest to the back of the engine goes to the pressure regulator on the secondary fuel rail. which is the same as the diagrams in the FSM which is USDM meaning this replacedment engne is not JDM... right? also the intercooler says Turbo not turbo II which is printed on the USDM's intercoolers right? i just wanna make sure. its not a big deal if it isnt JDM it just suck the seller lied. or maybe he didnt lie i dont know.

anyways there is a hose coming out of the back of the Intake Manifold and i dont know where it goes to and i cant find it in the FSM. its to the right of the vacuum hose that connects the the Fuel pressure regulator in the photo below. sorry i didnt edit the photo to make it easier to see which hose in talking about but im new to linux and i dont know of any photo editor for linux thats as easy to use a microsoft paint.



please help!!! thank you

 

Brake booster vacuum line if it's the one I think you're talking about.

My JDM engine doesn't have the AWS system. It's an S5. It is possible that you have a JDM block with USDM manifolds.

 

hmmm ima take a look thru the brake section of the FSM and make sure. thanks for the reply. can anybody confirm????

this engine does not have a AWS valve. i dont see any valve missing an electrical connector the to the wiring harness. but the fuel lines aren't reveresed....weird......

 

That's what I was thinking too. Does it have a bolt going thru it? Cause if so that's the brake booster line

 

it does not have a bolt going thru it. just a nipple off the intake manifold with a fuel hose connected to it. coolant maybe? ill look in the morning