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
P1077
Intake Manifold Runner Control System Malfunction Low RPM
Audi
Fuel and Air Metering
High severity
P1081
Exhaust Bank 3- Mixture Adaption Range 1 Lower Lean Limit Not Reached
Audi
Auxiliary Emissions Control
High severity
P1083
Exhaust Bank 3- Mixture Adaption Range 1 Lower Rich Limit Not Reached
Audi
Auxiliary Emissions Control
High severity
P1086
Exhaust Bank 4- Mixture Adaption Range 2 Lower Lean Limit Not Reached
Audi
Auxiliary Emissions Control
High severity
P1087
Exhaust Bank 4- Mixture Adaption Range 1 Lower Rich Limit Not Reached
Audi
Auxiliary Emissions Control
High severity
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