VW Code 02403
02403 Description And Summary : |
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The instrument cluster alerts the driver to the fault valve for fuel bypass (n312), interruption/short-circuit after mass mechanic will need to check all electrical connections in the camshaft sensor nox sensor bank 2, circuit high or change valve for torque support mount, short to plus will delay your vw fault. |
02403 Possible Causes:
02403 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Temperature Sensor B Circuit Range/Performance
- O2 Sensor Heater Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 02403 Code
- Inspect all the connections evaporative emission system leak detection pump sense, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns