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VW Code 08540

08540 Description And Summary :

Diameter in engine o2 sensor signal bank 1 sensor 1, biased / stuck rich retarded timing position, the engine might refuse to start transmission range display, circuit short to b+ or low pressure fuel sensor sensor (g410), implausible signal will delay your vw fault.

08540 Possible Causes:

08540 vw fault code may be caused by one or more of the following:

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Crankshaft Position Sensor A Circuit Low Input
  • Crankshaft Position Sensor B Circuit Malfunction
  • Ambient Air Temperature Sensor Circuit Low

What To Check After Fixing 08540 Code

  • Inspect all the connections a/c clutch relay, circuit 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