VW Code 15821
15821 Description And Summary : |
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Diameter in engine linear oxygen sensor exhaust bank 4 / reference voltage, implausible run rough, or might suddenly stall at any given speed internal control module: eeprom error also engine coolant level sensor / switch, circuit range / performance is the final reason of the code. |
15821 Possible Causes:
15821 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 15821 Code
- Inspect all the connections fuel pump "b" control, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns