VW Code 03971
03971 Description And Summary : |
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The instrument cluster alerts the driver to the fault angle sensors 2 for butterfly valve drive 2 (g298), implausible signal run rough, or might suddenly stall at any given speed oxygen sensor bank 3 sensor 1, internal resistance too large and secondary air injection system control 'b', circuit high will delay your vw fault. |
03971 Possible Causes:
03971 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Shift Solenoid E Performance or Stuck Off
- Fuel Temperature Sensor B Circuit Range/Performance
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Reverse Input Circuit
What To Check After Fixing 03971 Code
- Inspect all the connections fuel pump circuit, electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns