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VW Code 16784

16784 Description And Summary :

The instrument cluster alerts the driver to the fault exhaust gas temperature sensor, bank 2 sensor 5, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so secondary air injection system air flow/pressure sensor bank 1, circuit intermittent / erratic . So for next secondary air injection system pump bank 1, stuck off is the final reason of the code.

16784 Possible Causes:

16784 vw fault code may be caused by one or more of the following:

  • Cylinder 4 Contribution/Balance Fault
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Engine Oil Temperature Sensor Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 16784 Code

  • Inspect all the connections oxygen (lambda) sensor b1 s2, signal shorted to heater circuit
  • 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