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
P1165
Bank 1 Long Term Fuel Trim Range 1 Rich Upper Limits Exceeded
Audi
Fuel and Air Metering
High severity
P1171
Throttle Actuation Potentiometer Signal 2 Range/Performance
Audi
Fuel and Air Metering
High severity
P1173
Throttle Actuation Potentiometer Signal 2 Signal Too High
Audi
Fuel and Air Metering
High severity
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