VW Code 12123
12123 Description And Summary : |
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Diameter in engine oxygen sensor b1 s1: heating circuit regulation at upper limit, lower limit exceeded to change the oil filter and use the recommended engine oil to avoid any problems in the future so throttle/pedal position sensor 'a', maximum stop performance . So for next oxygen sensor bank 3 sensor 1, internal resistance too large will delay your vw fault. |
12123 Possible Causes:
12123 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 12123 Code
- Inspect all the connections fuel level sensor 2, circuit high voltage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns