rear of the air chamber tiny hose beside EGR pipe

[k_tieu]

hey guys i just did my starter all done car runs (1990 ls400)
thanks to lex@lextreme bought a fuel rail of him cuz i stripped mine
ok so everything is in except this one hose i duno where i is but its supposed to go beside the egr pipe on the right side viewing from the rear
this is on the air chamber so if i put my finger on it. it idles fine i let go it chokes and dies and u can feel this vaccum on it if i take my finger off u can hear a hissing sound so ya any one noe where this hose is i need to plug it on so i can drive the car
cheers

 

[Zuffen]

Most likely the vacuum line to the brakes.

It bolts in with a banjo style bolt.