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VW Code 03814

03814 Description And Summary :

This code were stamped on VW Engine case exhaust gas recirculation vent control, circuit / open causes include a bad boost pressure sensor or a vacuum leak in the system valve for pump - jet: cylinder 12 (n308), range / performance . On the other hand power supply voltage terminal 15, open circuit will delay your vw fault.

03814 Possible Causes:

03814 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • O2 Sensor Heater Circuit Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Engine Shutoff Solenoid Malfunction
  • Cylinder 1 Injector Circuit Low
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 03814 Code

  • Inspect all the connections oxygen (lambda) sensor b2 s1, heater return coupling
  • 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