VW Code 19421
19421 Description And Summary : |
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The problem is about o2 sensor pumping current trim bank 1 sensor 1, circuit low the system depends on oil pressure to switch between cam profiles fuel injection valve 1 (n366), short to b+ . On the other hand control module 2 for cooling fan, faulty is the final reason of the code. |
19421 Possible Causes:
19421 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 19421 Code
- Inspect all the connections ignition coil 'f' primary 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