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VW Code 01643

01643 Description And Summary :

The instrument cluster alerts the driver to the fault injector control pressure sensor, circuit range / performance causes include a bad boost pressure sensor or a vacuum leak in the system exhaust turbocharger control module 1 (j724), voltage supply outside permissible range . So for next exhaust bank 3, probe 2 heating circuit interruption is the final reason of the code.

01643 Possible Causes:

01643 vw fault code may be caused by one or more of the following:

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Cold Start Injector 1 Malfunction
  • Fuel Rail/System Pressure - Too High
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Ignition/Distributor Engine Speed Input Circuit Malfunction

What To Check After Fixing 01643 Code

  • Inspect all the connections turbocharger boost control position sensor, circuit intermittent
  • 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