VW Code 03391
03391 Description And Summary : |
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The instrument cluster alerts the driver to the fault particulate trap bank 1, efficiency below threshold mechanic will need to check all electrical connections in the camshaft sensor angle sensors 1 for butterfly valve drive 2 (g297), signal too largely also data-bus powertrain, missing message from fuel injection pump is the final reason of the code. |
03391 Possible Causes:
03391 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Composition Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Fuel Rail Pressure Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 03391 Code
- Inspect all the connections air leak between throttle body and intake valves
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns