OBD Code Database - Complete Diagnostic Guide
Comprehensive OBD code information and solutions
P0121
Throttle Position Sensor 1 Performance Issue
P0122
Throttle Position Sensor 1 Circuit Low Voltage
P0123
Throttle Position Sensor 'A' Circuit High Input
P0128
Coolant Thermostat Malfunction
P0134
O2 Sensor Circuit No Activity Detected
P0131
O2 Sensor Circuit Low Voltage Bank 1 Sensor 1
P0135
O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
P0137
O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
P0138
O2 Sensor Circuit High Voltage Bank 1 Sensor 2
P0139
O2 Sensor Circuit Slow Response Bank 1 Sensor 2
P0141
O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
P0157
O2 Sensor Circuit Low Voltage Bank 2 Sensor 2
P015B
Oxygen Sensor Delayed Response Bank 1 Sensor 1
P0171
Fuel Trim System Lean in Bank 1
P0172
Fuel Trim System Rich in Bank 1
P0174
Fuel Trim System Lean in Bank 2
P0175
Fuel Trim System Rich in Bank 2
P0299
Engine Underboost Detected
P0191
Fuel Rail Pressure Sensor Circuit Performance Issue
P0300
Random Cylinder Misfire Detected
No matching OBD code found in database
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