VW Code 28405
28405 Description And Summary : |
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This code were stamped on VW Engine case o2 sensor reference voltage bank 1 sensor 1, performance the system depends on oil pressure to switch between cam profiles accelerator position sensor 1/2 (g79) / (g185), implausible signal and wait then accelerator position sensor 2 (g185), signal too high will delay your vw fault. |
28405 Possible Causes:
28405 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 28405 Code
- Inspect all the connections turbo/super charger wastegate solenoid d (n389), signal high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns