i cant find a vacuume diagram for a 12 valve anywere but im helping a guy and he found a vacuume line not connected to anything and i cant see where it goes to but if you look at the main line at the top of the firewall several lines split off of it the one i need info on is the one that t's off inline with the fuel filter and has two 90 degree fitings on it and is about 1.5 feet long so it could go anywere but can somebody help me out

 

Going strictly off memory, my 98 12-valve has 2 vacuum hoses on the driver's side of the engine compartment - one from the vacuum pump to the trunk on the firewall, then one that goes from the main trunk on the firewall down to the cruise control actuator in front of/under the battery.

The only other vacuumish hose is the boost reference hose that goes from the intake manifold to the back of the injection pump.