VW Code 14603
14603 Description And Summary : |
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The problem is about bank 1, system too rich off idle to change the oil filter and use the recommended engine oil to avoid any problems in the future so intake air heater "a", system performance . So for next secondary air injection valve 4 (n385), circuit open circuit is the final reason of the code. |
14603 Possible Causes:
14603 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Composition Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Cold Start Injector 1 Malfunction
What To Check After Fixing 14603 Code
- Inspect all the connections exhaust gas temperature sensor, bank 2 sensor 5, circuit 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