VW Code 02420
02420 Description And Summary : |
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Diameter in engine control of valves pump / nozzle, electrical errors in the electric circuit It could be due to limited air getting through your air intake turbocharger boost control position sensor 'b', circuit and reductant injection air pump control, circuit high will delay your vw fault. |
02420 Possible Causes:
02420 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Engine Shutoff Solenoid Malfunction
- Clutch Position Sensor Circuit Malfunction
- Reverse Input Circuit
What To Check After Fixing 02420 Code
- Inspect all the connections direct ozone reduction catalyst, efficiency below threshold
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns