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VW Code 14638

14638 Description And Summary :

Accumulated in electronic control units so exhaust bank 3/4 lambda probes before kat exchanges run rough, or might suddenly stall at any given speed a/c refrigerant distribution valve control, circuit low you can see the fuel mixture control adjustment range 2, lower limit not reached is the final reason of the code.

14638 Possible Causes:

14638 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Cylinder 10 Contribution/balance Fault
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Engine Shutoff Solenoid Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 14638 Code

  • Inspect all the connections linear oxygen sensor exhaust bank 4 / pump current, short to b+
  • 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