Positive Crankcase Ventilation (Pcv) System - Toyota Supra 1990 Manual

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EMISSION CONTROL SYSTEMS - Positive Crankcase Ventilation (PCV) System

POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM

Blow-By Gas_

EC3395 EC3394

To reduce HC emissions, crankcase blow-by gas (HC) is routed to the intake manifold for combustion in the cylinders.

EC2099 EC2364

INSPECTION OF PCV HOSE AND

VISUALLY INSPECT HOSE AND CONNECTIONS

Check for cracks, leaks or damage.

CLEAN ORIFICE(S)

Clean off any gum deposits in the orifice(s) with solvent

and blowout with compressed air.

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