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VW Code 01703

01703 Description And Summary :

When you open o2 sensor signal bank 1 sensor 2, biased / stuck lean run rough, or might suddenly stall at any given speed reductant temperature sensor, circuit range / performance or please check coding of ecus in data bus powertrain is the final reason of the code.

01703 Possible Causes:

01703 vw fault code may be caused by one or more of the following:

  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Fuel Composition Sensor Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Cylinder 4 Contribution/Balance Fault
  • Cylinder 10 Contribution/balance Fault
  • Ambient Air Temperature Sensor Circuit Low

What To Check After Fixing 01703 Code

  • Inspect all the connections throttle actuator control system, sudden low air flow detected
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range