VW Code 10420
10420 Description And Summary : |
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This code were stamped on VW Engine case linear oxygen sensor exhaust bank 4 / common ground wire, short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system charging system, voltage also control module 2 for cooling fan, faulty is the final reason of the code. |
10420 Possible Causes:
10420 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Fuel Composition Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cold Start Injector 1 Malfunction
What To Check After Fixing 10420 Code
- Inspect all the connections mil call-up circuit / transmission control module, 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