Forester F4-2.5L SOHC (2004)
Positive Crankcase Ventilation: Description and Operation
System Overview
System Overview
There are three emission control systems which are as follows:
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Crankcase emission control system
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Exhaust emission control system
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Three-way catalyst system
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Air/fuel (A/F) control system
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Ignition control system
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Evaporative emission control system
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On-board refueling vapor recovery (ORVR) system
