02S2Grand

Looking for a diagram of the vacuum hoses. I must of put them back on wrong....The other threads didn't help much and I couldn't locate it in the service manual.



Thx.

steven975

top hardline (under fuel rail) to passenger side bung on vacuum tank (lower bung).
driver side bung (upper bung, the side with the indentation and screw hole) to lower bung on sensor.
upper bung on sensor to lower hardline (under fuel rail).

Check valve goes on the hose in the first step...air should flow from the vacuum tank to the hardline but NOT vice versa.




As to the other 2 hoses (one to the valve cover, one to the air pump), those are larger hoses and each should fit on a specific bung on the AEM's tube.

As to that "4 welded together tubes thing" that goes between the throttle body and manifold, I think you ditch that. I think the intake comes with a coolant line to go between the manifold and throttle body (pretty short).

SgtB

The "Sensor" in that picture is a one way valve. Start the car and listen near it. If you hear a hiss swap the two vacuum lines on it. It's the most common made mistake.

02S2Grand

Thanks