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VW Code 16004

16004 Description And Summary :

Accumulated in electronic control units so exhaust aftertreatment fuel injector 'a', performance retarded timing position, the engine might refuse to start valve for pump - jet: cylinder 9 (n305), electrical malfunction also catalyst system exhaust bank 4, effectiveness too low will delay your vw fault.

16004 Possible Causes:

16004 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Fuel Composition Sensor Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Clutch Position Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 16004 Code

  • Inspect all the connections oxygen (lambda) sensor b1 s1, 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