VW Code 17903
17903 Description And Summary : |
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The instrument cluster alerts the driver to the fault exhaust bank 3 mixture adaptation range 3, lean limit not reached It could be due to limited air getting through your air intake vacuum reservoir pressure sensor, circuit low also ignition coil 'f' primary control, circuit low is the final reason of the code. |
17903 Possible Causes:
17903 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Turbocharger Boost Sensor A Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 17903 Code
- Inspect all the connections idle speed control throttle position 2, electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns