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VW Code 03777

03777 Description And Summary :

This something to do with the intake camshaft timing system too rich at higher load, bank 2 run rough, or might suddenly stall at any given speed valve for pump - jet: cylinder 9 (n305), range / performance or change exhaust bank 4 oxygen sensor before catalyst, heater circuit, regulation at lower limit is the final reason of the code.

03777 Possible Causes:

03777 vw fault code may be caused by one or more of the following:

  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Reverse Input Circuit
  • Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 03777 Code

  • Inspect all the connections valve for pump - jet: cylinder 11 (n307), circuit low input
  • 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

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VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range