Philip_g

I'm reinstalling my UIM and thought my notes were good enough, guess not, and I can't figure it out from the service manual chart. Can anyone help?

The three tibes circled we'll come to later because I think they go to another line comin up. the big tube off the throttle body, the one off the manifold, and the one you can't see on the engine block, just behind the flywheel are a mystery to me, I thought the big tube on the right went to the engine block, but it doesn't appear to fit quite right, anyone know?




Ok, #1 comes from between the oil injectors, and I thought goes to the middle tube of the three circled above, but I'm not sure.

#2 the manual shows goes to something on the fuel rail, I'm just confuesed about that one completely

#3 and #4 I thought connected to each other, but I can't tell for sure.



#1 again comes from between the oil injectors. #2 looks like it would be obvious, but NOOO.





Thanks for the help

Philip_g

1SxyRXy

in the first picture. the hose going to the throttle body should go to the engine. or brake boost one of those 2 fatt lines are coolant and one is brake booster. and those 3 nipples that dont have anything. i dont know off hand which one goes where. but he fat ones goes to a thing under the UIM.

1SxyRXy

mine is a S5 so i think it might be different

Philip_g

Yeah, it is a little different )

elfking

The bottom of the 3 in the picture marked that have nothing connected to it. The line is bigger than the rest. That is hooked to the vacuum spider (aka the rats nest) which runs vacuum to your oil injectors.

EDIT: Ahh yes, and thinking about it now, that line which you have marked as 1, with a really long hose... I remember i put the whole car back togeather before I figured out I didnt replace that vac line, it runs from under the manafold out the back, like the spider does, and connects to one of those smaller lines of those (3 pictured)

On my car, I hooked it into the middle of the 3 (Bottom one is the spider, middle is this one, and im trying to remember what the top one was...). I used a vac picture from the FSM and it showed it going there.

IN the last picture:

That line you have circled with no number next to it, on my setup it has been capped off. I can't firgure out where it went. I was thinking it was hooked to the cold-start assist which has been removed from the car.

Or it might be the reason I can't pass smog yet.

I do infact recall number 3 and 4 being hooked up across the manafold like that.

I will be heading home in an hour or so from work, I will take a look for you see if I can remember...

elfking

Here is a picture that might help you.

Philip_g

thank you! let me know what you find!

I'm so completely confused. I think the small lines I have sorted out, the FSM diagram is pretty OK on those, the only line I don't have a place for is that small line circled on the right side of pic 2, there's nowhere for it to go. The FSM shows it going to a switching actuator maybe, but I can't figure out what that is, or where it is.

My other big concern are the BIG lines that aren't marked as well. There's a nipple visible on the end housing, bottom left of pic 1, it appears to be a coolant line, but I don't know where it goes. Pic 2 and 3 shows the two large line from the manifold, above the one on the engine, I have NO clue where to put these I'm afraid. Anyone?

Philip_g

^

it looks like that left hose attaches to the nipple on the engine since they look like coolant hoses, that just leaves the big one circled in pic 1

Philip_g

^
it's the LAST thing to do before hooking it to the hoist and putting it in the car after a rebuild, help me out here.

Philip_g

*begs*