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
P0140
O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2
Generic
Fuel and Air Metering
Medium severity
P0154
O2 Sensor Circuit No Activity Detected Bank 2 Sensor 1
Generic
Fuel and Air Metering
Medium severity
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