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VW Code 02904

02904 Description And Summary :

This something to do with the intake camshaft timing glow plug / heater relay, circuit open / short to ground to change the oil filter and use the recommended engine oil to avoid any problems in the future so tiptronic switch (f189), implausible signal . On the other hand o2 sensor reference voltage bank 1 sensor 1, circuit low will delay your vw fault.

02904 Possible Causes:

02904 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Cold Start Injector 1 Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 02904 Code

  • Inspect all the connections ignition coil 'b' 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