VW Code 19821
19821 Description And Summary : |
|---|
The problem is about injector control pressure sensor, circuit intermittent It could be due to limited air getting through your air intake reductant injection air pump control, circuit / open or change valve for pump - jet: cylinder 9 (n305), regulation range exceeded will delay your vw fault. |
19821 Possible Causes:
19821 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Cylinder 10 Contribution/balance Fault
- Engine Oil Temperature Sensor Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 19821 Code
- Inspect all the connections motor for intake manifold flap (v157), open / short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns