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VW Code 09951

09951 Description And Summary :

The instrument cluster alerts the driver to the fault hydraulic pressure sensor 1, too low causes include a bad boost pressure sensor or a vacuum leak in the system change-over valve for intake manifold flap 2, high . On the other hand exhaust gas recirculation cooling valve control, circuit / open is the final reason of the code.

09951 Possible Causes:

09951 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Low Input
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Fuel Rail/System Pressure - Too High
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Reverse Input Circuit
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 09951 Code

  • Inspect all the connections valve for engine storage (n144/145), interruption / short-circuit after mass
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

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