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VW Code 13977

13977 Description And Summary :

The problem is about nox sensor bank 2, circuit high the system depends on oil pressure to switch between cam profiles reversing light, circuit short to ground you can see the exhaust gas temperature sensor bank 2 sensor 1, circuit intermittent will delay your vw fault.

13977 Possible Causes:

13977 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Low Input
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Reverse Input Circuit
  • Crankshaft Position Sensor A Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 13977 Code

  • Inspect all the connections accelerator position sensor 2 (g185), signal too low
  • 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

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VW 28000 - 29900 Code Range

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