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Nissan and Datsun PL720 4WD L4-2389cc 24L SOHC (Z24) Service Manuals

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Vacuum Amplifier, EGR|Description and Operation|Page 1331 > < Vacuum Control Modulator|Page 1327

PL720 4WD 24L SOHC Emission Control: Vacuum Amplifier, EGR

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Vacuum Amplifier: Description and Operation

Fig. 55 Vacumm amplifier.

    The vacuum amplifier which receives a weak vacuum signal produced in sub-venturi, activates the venturi diaphragm. This controls the output vacuum
admitted to the EGR control valve.

Vacuum Amplifier, EGR|Description and Operation|Page 1331 > < Vacuum Control Modulator|Page 1327