4agze wiring problem

[jondee86]

Pretty sure that the GZE has a thermostatic idle-up valve the same as
all the 16V 4AGE's. If you are not feeding the valve hot water from the
cooling system, the valve will stay open and push your idle up. Also check
that the idle air bypass screw is screwed all the way in.

At Idle you can expect the intake to run at a similar vacuum to a N.A.
engine. So there could be 7 or 8psi of vacuum inside the hose. That will
suck most flexible hoses flat

And this... http://www.pbase.com/aw11mr2/sensors_and_vacuum_lines

Cheers... jondee86