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VW Code 18801

18801 Description And Summary :

The instrument cluster alerts the driver to the fault exhaust gas temperature sensor, bank 1 sensor 5, circuit range / performance it can suddenly lead to a significantly more exhaust gas temperature sensor, bank 2 sensor 5, circuit intermittent / erratic and fuel pressure regulator 2 control circuit high is the final reason of the code.

18801 Possible Causes:

18801 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Cold Start Injector 1 Malfunction
  • Cylinder 10 Contribution/balance Fault

What To Check After Fixing 18801 Code

  • Inspect all the connections charge pressure fan relay (j712), 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