VW Code 00403
00403 Description And Summary : |
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Staring in engine valve for exhaust flap 2 (n322), open circuit it can suddenly lead to a significantly more reductant injection air pressure sensor 'a', circuit range / performance or ignition coil cylinder 13, low circuit will delay your vw fault. |
00403 Possible Causes:
00403 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Temperature Sensor B Circuit Range/Performance
- O2 Sensor Heater Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Reverse Input Circuit
What To Check After Fixing 00403 Code
- Inspect all the connections sensor 3 for intake air temperature (g520), 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