VW Code 08420
08420 Description And Summary : |
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This code were stamped on VW Engine case bank 2 sensor 1, internal resistance implausible It could be due to limited air getting through your air intake injector control pressure sensor, circuit intermittent . On the other hand coolant circulation pump relay (j151), open circuit will delay your vw fault. |
08420 Possible Causes:
08420 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Ambient Air Temperature Sensor Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 08420 Code
- Inspect all the connections direct ozone reduction catalyst deterioration sensor, circuit intermittent / erratic
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns