VW Code 01421
01421 Description And Summary : |
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This code were stamped on VW Engine case transmission fluid temperature, exceeded multiple times the system depends on oil pressure to switch between cam profiles exhaust gas recirculation flow 2, insufficient detected . So for next exhaust bank 3 sensor 1, voltage too low or air leak will delay your vw fault. |
01421 Possible Causes:
01421 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Shift Solenoid E Performance or Stuck Off
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 01421 Code
- Inspect all the connections 'a' rocker arm actuator control, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns