Which model/year/engine are you working on?
Is the other end of that hose connected to anything?
Recent engine work??
A few wider views of the engine bay may help.
where exactly is the 1990 fj80 fsm? cant findThere should be a vacuum diagram on the underside of the hood. If yours is gone, it's in the FSM, which you can download from the Resources section.
@jonheld has a copy of the FSM for sale. It's worth the money.where exactly is the 1990 fj80 fsm? cant find