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
P1119
HO2S Sensor Heater Circuit Short To Ground Bank 2 Sensor 1
Audi
Fuel and Air Metering
Medium severity
P1123
Long Term Fuel Trim Adjustment Bank 1 System Too Rich
Audi
Fuel and Air Metering
High severity
P1124
Long Term Fuel Trim Adjustment Bank 1 System Too Lean
Audi
Fuel and Air Metering
High severity
P1133
HO2S Heater Circuit- Bank 1 & 2 Sensor 1 Electrical Malfunction
Audi
Fuel and Air Metering
Medium severity
P1134
HO2S Heater Circuit- Bank 1 & 2 Sensor 2 Short To B
Audi
Fuel and Air Metering
Medium severity
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