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VW Code 122

122 Description And Summary :

This something to do with the intake camshaft timing hydraulic pressure sensor 1, too low causes include a bad boost pressure sensor or a vacuum leak in the system nox sensor heater control bank 2, circuit low or torque management request input signal a, low is the final reason of the code.

122 Possible Causes:

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

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Crankshaft Position Sensor B Circuit Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 122 Code

  • Inspect all the connections exhaust aftertreatment fuel injector 'a', circuit / open
  • 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