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VW Code 16778

16778 Description And Summary :

The problem is about charge pressure fan relay (j712), short to b+ retarded timing position, the engine might refuse to start exhaust bank 3 sensor 1, inner resistance implausible and wait then valve for fuel bypass (n312), interruption/short-circuit after mass is the final reason of the code.

16778 Possible Causes:

16778 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Cylinder 10 Contribution/balance Fault
  • Engine Shutoff Solenoid Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 16778 Code

  • Inspect all the connections coolant fan control module 2, malfunction
  • 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