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Posted: 10 months ago Posted in Diagnostic Trouble Codes Comments: 0 Views: 603

P0446 Evaporative Emission Control System Vent Control Circuit Malfunction – What is it ?

P0446 Evaporative Emission Control System Vent Control Circuit Malfunction – What is it ?

The evaporative emissions control (EVAP system) prevents fuel vapours escaping into atmosphere. Carbon pellets are used to absorb and store fuel vapours. Engine control module (ECM/PCM/ECU) continuously monitors the ventilation control valve. The ECU opens the ventilation control valve when ...