2002 · INTAKE AND EXHAUST [15] · страница 5 из 9 · Открыть оригинал PDF ↗

NOTE

(1)If the variable geometry actuator vacuum is not in a normal
condition,thevariablegeometryactuator,variable
geometrysolenoidvalve,variablegeometrycontrol
pressuresensor,vacuumpumporhosemaybefaulty.

(2)Ifthevariablegeometryactuatorvacuumisinanormal
condition but the supercharging pressure is not in a normal
condition,thevariablegeometryturbochargernozzle,
boostpressuresensor,orhosemaybefaulty.

Caution

Becarefulnottoforciblyactivatethevariablegeometry
solenoidvalvetothefullestdegreewhenrunningata
highspeed.Toomuchsuperchargingpressurecould
damagetheengineortheturbocharger.

VARIABLE GEOMETRY ACTUATOR CHECK

1.Connectthehandvacuumpumptonipple.

2.Whilegraduallyapplyingvacuum,checkthevacuumthat
begins to active (approximately 1 mm stroke)the variable
geometryactuatorrod.

Standardvalue:Approximately10.5-12.5kPa
Caution

In order to avoid damage to the diaphragm, do not apply a
vacuum of 59 kPa or higher.

3.Ifthereisasignificantdeviationfromthestandardvalue,
checktheactuatororthevariablenozzle:replaceif
necessary.

VARIABLE GEOMETRY SOLENOID VALVE CHECK

NOTE

Whendisconnectingthevacuumhose,alwaysmakeamark
sothatitcanbereconnectedatoriginalposition.

1.Disconnectthevacuumhose(black,redstripe)fromthe
solenoidvalve.

2.Disconnecttheharnessconnector.

3.Connectahandvacuumpumptothenippletowhich
theredstripedvacuumhosewasconnected.

4.Checkairtightnessbyapplyingavacuumwithvoltage
applieddirectlyfromthebatterytothevariablegeometry
solenoidvalveandwithoutapplyingvoltage.

Оригинальная страница руководства