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
P049E
Exhaust Gas Recirculation B Control Position Exceeded Learning Limit
Generic
Auxiliary Emissions Control
Medium severity
P04A0
Exhaust Pressure Control Valve B Range/Performance
Generic
Auxiliary Emissions Control
Medium severity
P04A3
Exhaust Pressure Control Valve B Intermittent
Generic
Auxiliary Emissions Control
Medium severity
P04A4
Exhaust Pressure Control Valve B Stuck Open
Generic
Auxiliary Emissions Control
Medium severity
P04A7
Exhaust Pressure Control Valve B Position Sensor/Switch Circuit Range/Performance
Generic
Auxiliary Emissions Control
Medium severity
P04A9
Exhaust Pressure Control Valve B Position Sensor/Switch Circuit High
Generic
Auxiliary Emissions Control
Medium severity
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