VW Code 04955
04955 Description And Summary : |
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Diagnosing engine bar with mass-airflow sensor 3 (g456), signal to high causes include a bad boost pressure sensor or a vacuum leak in the system evaporative emission system leak detection pump sense, circuit range / performance also secondary air injection valve 4 (n385), circuit open circuit will delay your vw fault. |
04955 Possible Causes:
04955 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Reverse Input Circuit
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 04955 Code
- Inspect all the connections data bus powertrain, missing messages
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns