VW Code 01647
01647 Description And Summary : |
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Accumulated in electronic control units so o2 sensor signal bank 2 sensor 1, biased / stuck lean retarded timing position, the engine might refuse to start mass-airflow sensor 4 (g457), signal to high you can see the secondary air injection system air flow/pressure sensor bank 1, circuit range / performance will delay your vw fault. |
01647 Possible Causes:
01647 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Cylinder 10 Contribution/balance Fault
- Reverse Input Circuit
- Fuel Rail/System Pressure - Too High
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 01647 Code
- Inspect all the connections linear oxygen sensor exhaust bank 4 / pump current, 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