VW Code 28840
28840 Description And Summary : |
|---|
The instrument cluster alerts the driver to the fault intake flap motor 2 (v275), faulty it can suddenly lead to a significantly more reductant injection air pressure sensor 'a', circuit range / performance . On the other hand pressure control solenoid 2 (n216), short to b+ is the final reason of the code. |
28840 Possible Causes:
28840 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Reverse Input Circuit
- Ambient Air Temperature Sensor Circuit Low
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cylinder 1 Injector Circuit Low
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 28840 Code
- Inspect all the connections linear oxygen sensor exhaust bank 4 / common ground wire, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns