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VW Code 16638

16638 Description And Summary :

This something to do with the intake camshaft timing nox sensor heater sense bank 1, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so exhaust gas temperature sensor, bank 1 sensor 5, circuit high also nox sensor heater sense bank 1, circuit range / performance will delay your vw fault.

16638 Possible Causes:

16638 vw fault code may be caused by one or more of the following:

  • Timing Reference High Resolution Signal A Too Many Pulses
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cylinder 10 Contribution/balance Fault
  • Crankshaft Position Sensor A Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 16638 Code

  • Inspect all the connections ignition coil 'a' primary control, short to plus
  • 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