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
P1444
EGR Valve Position Sensor Range/Performance
Volkswagen
Auxiliary Emissions Control
Medium severity
P1445
Catalyst Temperature Sensor 2 Circuit Range/Performance
Volkswagen
Auxiliary Emissions Control
Medium severity
P1447
Catalyst Temperature Circuit Open/Short to B
Volkswagen
Auxiliary Emissions Control
Medium severity
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