VW Code 03973
03973 Description And Summary : |
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Diameter in engine fuel pressure regulator 2 control circuit / open retarded timing position, the engine might refuse to start turbocharger boost control position sensor 'b', circuit low also ignition coil 'k' primary control, short to plus is the final reason of the code. |
03973 Possible Causes:
03973 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 03973 Code
- Inspect all the connections intake manifold flap; bank 1, stuck open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns