VW Code 12900
12900 Description And Summary : |
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This code were stamped on VW Engine case fuel cap sensor / switch, circuit range / performance mechanic will need to check all electrical connections in the camshaft sensor diesel particulate filter pressure sensor 'a', circuit low . On the other hand nox sensor heater sense bank 1, circuit is the final reason of the code. |
12900 Possible Causes:
12900 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cylinder 4 Contribution/Balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ambient Air Temperature Sensor Circuit Low
- Fuel Temperature Sensor B Circuit Range/Performance
- Cold Start Injector 1 Malfunction
What To Check After Fixing 12900 Code
- Inspect all the connections fuel injection valve 4 (n369), open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns