VW Code 09804
09804 Description And Summary : |
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Diagnosing engine bar with control module 1 for cooling fan, short circuit causes include a bad boost pressure sensor or a vacuum leak in the system torque management request input signal a, range / performance . So for next o2 sensor signal bank 1 sensor 2, biased / stuck lean will delay your vw fault. |
09804 Possible Causes:
09804 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 09804 Code
- Inspect all the connections sensor 3 for intake air temperature (g520), signal low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns