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VW Code 12238

12238 Description And Summary :

This code were stamped on VW Engine case friction too high, exhaust cam adjustment bank 2 causes include a bad boost pressure sensor or a vacuum leak in the system reductant injection air pump control, circuit / open or change data-bus powertrain, missing message from fuel injection pump will delay your vw fault.

12238 Possible Causes:

12238 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Cylinder 1 Injector Circuit Low
  • Clutch Position Sensor Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Ambient Air Temperature Sensor Circuit Low
  • Cylinder 4 Contribution/Balance Fault
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 12238 Code

  • Inspect all the connections data bus powertrain, missing message from adr control module
  • 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