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VW Code 03278

03278 Description And Summary :

When you open hc adsorption catalyst efficiency below threshold bank 1 retarded timing position, the engine might refuse to start throttle position (tp) sensor (g79), error message from ecm also control module defective is the final reason of the code.

03278 Possible Causes:

03278 vw fault code may be caused by one or more of the following:

  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Fuel Composition Sensor Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Ignition/Distributor Engine Speed Input Circuit Malfunction

What To Check After Fixing 03278 Code

  • Inspect all the connections pressure control solenoid 2 (n216), open / short to ground
  • 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