VW Code 01909
01909 Description And Summary : |
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Accumulated in electronic control units so glow plug / heater relay, circuit open / short to ground causes include a bad boost pressure sensor or a vacuum leak in the system water in fuel sensor, circuit high also planetary overdrive / low range, mechanical malfunction will delay your vw fault. |
01909 Possible Causes:
01909 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Temperature Sensor B Circuit Range/Performance
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 01909 Code
- Inspect all the connections fuel mixture control adjustment range 1, lower limit not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns