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EVAP Control System Monitor

OBD System Description - EVAP Control System Monitor

System Description / Monitoring Procedure
Refer to EVAP Leak Check System Description.

DTC Description / Detecting Condition / Confirmation Procedure

P0441
Refer to DTC P0441: Evaporative Emission System Incorrect Purge Flow.

P0456
Refer to DTC P0456: Evaporative Emission System Leak Detected (Very Small Leak).

P1420, P1421
Refer to DTC P1420 / P1421: Evaporative Emission System Vent Valve Stuck Open / Closed.

P1422
Refer to DTC P1422: Evaporative Emission System Leak Detect Pump Stuck OFF.

P1424, P1425
Refer to DTC P1424 / P1425: Evaporative Emission System Leak Detection Pump Flow High / Low.

EVAP Control System Monitor

EVAP Control System Monitor:




Enable Conditions:




Typical Malfunction Thresholds:




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