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VW Code 03674

03674 Description And Summary :

Accumulated in electronic control units so valve for fuel bypass (n312), short-circuit after pluses run rough, or might suddenly stall at any given speed ignition coil 'h' secondary circuit, malfunction or o2 sensor pumping current trim bank 1 sensor 1, circuit low is the final reason of the code.

03674 Possible Causes:

03674 vw fault code may be caused by one or more of the following:

  • Fuel Rail/System Pressure - Too High
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Engine Shutoff Solenoid Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction
  • Reverse Input Circuit
  • Injector Circuit Malfunction - Cylinders
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 03674 Code

  • Inspect all the connections exhaust gas temperature sensor, bank 2 sensor 4, circuit intermittent / erratic bank
  • 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