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VW Code 18084

18084 Description And Summary :

Diameter in engine hc adsorption catalyst efficiency below threshold bank 2 retarded timing position, the engine might refuse to start fuel pump "b", low flow / performance or 'a' rocker arm actuator system, stuck on is the final reason of the code.

18084 Possible Causes:

18084 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Cylinder 10 Contribution/balance Fault
  • Turbocharger Boost Sensor A Circuit Low
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 18084 Code

  • Inspect all the connections throttle/pedal position sensor / switch 'e', circuit range / performance
  • 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