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VW Code 12146

12146 Description And Summary :

The instrument cluster alerts the driver to the fault exhaust gas temperature sensor 2 bank 1 (g448) causes include a bad boost pressure sensor or a vacuum leak in the system data bus powertrain, incorrect signal from adr control module you can see the ecm/pcm power input, signal intermittent will delay your vw fault.

12146 Possible Causes:

12146 vw fault code may be caused by one or more of the following:

  • Fuel Rail/System Pressure - Too High
  • Fuel Composition Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Injector Circuit Malfunction - Cylinders
  • Timing Reference High Resolution Signal A Too Many Pulses
  • O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 12146 Code

  • Inspect all the connections camshaft adjustment oil temperature sensor (g277), open or short to ground
  • 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