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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P1134 HO2S11 Transition Time Fault
Hyundai Fuel and Air Metering Medium severity
P1146 Idle Co Potentiometer
Hyundai Injector Circuit High severity
P1147 Accelerator Position Sensor 1 Malfunction
Hyundai Injector Circuit High severity
P1152 Accelerator Position Circuit Low Input
Hyundai Injector Circuit High severity
P1154 HO2S 21 Transition Switch Time Fault
Hyundai Fuel and Air Metering Medium severity
P1155 ETS Limp Home Valve
Hyundai Injector Circuit High severity

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