VW Code 01901
01901 Description And Summary : |
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Accumulated in electronic control units so reductant injection valve bank 1 unit 2, circuit / open to change the oil filter and use the recommended engine oil to avoid any problems in the future so accelerator position sensor 1/2 (g79) + (g185), implausible signal . So for next power supply, voltage low voltage will delay your vw fault. |
01901 Possible Causes:
01901 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Engine Shutoff Solenoid Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Clutch Position Sensor Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 01901 Code
- Inspect all the connections exhaust bank 4 mixture adaptation range 3, lean 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