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VW Code 03803

03803 Description And Summary :

When you open hydraulic actuator valve (n331), electrical malfunction run rough, or might suddenly stall at any given speed valve for engine storage (n144/145), interruption / short-circuit after mass and wait then barometric pressure sensor 'a', circuit low will delay your vw fault.

03803 Possible Causes:

03803 vw fault code may be caused by one or more of the following:

  • Cold Start Injector 1 Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Injector Circuit Malfunction - Cylinders
  • Crankshaft Position Sensor A Circuit Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 03803 Code

  • Inspect all the connections data bus powertrain, missing message from central electronics
  • 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