VW Code 28477
28477 Description And Summary : |
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Staring in engine bank 3, o2 correction behind catalyst, b1, limit attained it can suddenly lead to a significantly more exhaust bank 3 sensor 1 oxygen sensor signal, implausibly lean . So for next accelerator pedal position sensor 1 (g79), signal too low will delay your vw fault. |
28477 Possible Causes:
28477 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Clutch Position Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- O2 Sensor Heater Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 28477 Code
- Inspect all the connections ignition coil 'j' 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