Found this in the shop manual...

INTAKE CHARGE PRESSURE CHECK

1. Disconnect the hose (black) from the tee-fitting joint and
connect the pressure gauge to this joint. Plug the hose
(black).
2. Drive the vehicle with full throttle and accelerate the engine
to a speed of more than 3,000 r/min at 2nd gear. Measure
the supercharging pressure when the pointer is stabilized.

Standard value: 53 − 80 kPa (7.7 − 11.6 psi)

3. If the intake charge pressure is lower than the standard
value, check the following items for possible cause.
• Malfunction of turbocharger wastegate actuator.
• Intake charge pressure leaks.
• Faulty turbocharger.
4. If the intake charge pressure is higher than the standard
value, the intake charge pressure control may be faulty. Ther
fore check the following.
• Malfunction of turbocharger wastegate actuator.
• Malfunction of turbocharger wastegate regulating valve.
• Disconnect or cracked turbocharger wastegate actuator
hose.


Is that the same as what I see on my boost gauge??
7.7 - 11.6 seem to be too low...??

 

I think that where they are plugging in the boost gauge is the hose that normally goes to the boost control solenoid so the pressure they are seeing will be the "base line" pressure supplied by the WG diaphram itself without any help from the stock boost control solenoid.

Keith