VW Code 07903
07903 Description And Summary : |
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The problem is about glow plug/heater relay 2 circuit, short to b+ retarded timing position, the engine might refuse to start activation starter relay 2, short to b+ and turbo/super charger, under-boost condition is the final reason of the code. |
07903 Possible Causes:
07903 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Injector Circuit Malfunction - Cylinders
- Ambient Air Temperature Sensor Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cold Start Injector 1 Malfunction
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 07903 Code
- Inspect all the connections exhaust bank 3, probe 1 tension too largely
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns