VW Code 02778
02778 Description And Summary : |
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The problem is about control unit programming communication error It could be due to limited air getting through your air intake o2 sensor reference voltage bank 2 sensor 1, circuit / open . So for next control module 2 for cooling fan, excess temperature will delay your vw fault. |
02778 Possible Causes:
02778 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Cylinder 4 Contribution/Balance Fault
- Clutch Position Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 02778 Code
- Inspect all the connections exhaust gas temperature bank 1, too high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns