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VW Code 16449

16449 Description And Summary :

Diagnosing engine bar with control module for coolant fan 3 fan activation, short circuit It could be due to limited air getting through your air intake oxygen (lambda) sensor b1 s1, signal shorted to heater circuit or load signal from alternator terminal df, open or short to b+ is the final reason of the code.

16449 Possible Causes:

16449 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Injector Circuit Malfunction - Cylinders
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Engine Shutoff Solenoid Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cold Start Injector 1 Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 16449 Code

  • Inspect all the connections injector control pressure sensor, 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