OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
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Fault codes
P0446
Evaporative Emission Control System Vent Control Circuit Malfunction
Generic
Auxiliary Emissions Control
Low severity
P0448
Evaporative Emission Control System Vent Control Circuit Close
Generic
Auxiliary Emissions Control
Low severity
P0449
Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
Generic
Auxiliary Emissions Control
Low severity
P0451
Evaporative Emission Control System Pressure Sensor Range/Performance
Generic
Auxiliary Emissions Control
Low severity
P0452
EVAP Control System Pressure Sensor Low Input
Generic
Auxiliary Emissions Control
Low severity
P0454
Evaporative Emission Control System Pressure Sensor Intermittent
Generic
Auxiliary Emissions Control
Low severity
P0455
Evaporative Emission Control System Leak Detected Gross Leak
Generic
Auxiliary Emissions Control
Low severity
P0456
EVAP Control System Leak Detected Very Small Leak
Generic
Auxiliary Emissions Control
Low severity
P0458
Evaporative Emission Purge Solenoid Control Circuit Low Voltage
Generic
Auxiliary Emissions Control
Low severity
P0459
Evaporative Emission Purge Solenoid Control Circuit High Voltage
Generic
Auxiliary Emissions Control
Low severity
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