VW Code 28780
28780 Description And Summary : |
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When you open pressure control solenoid 4 (n218), electrical malfunction causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 3, probe 1 no activity . So for next givers 2 for intake air temperature (g299), signal too small will delay your vw fault. |
28780 Possible Causes:
28780 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 28780 Code
- Inspect all the connections glow plug control module 2 (j703) to pcm communication circuit, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns