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VW Code 29056

29056 Description And Summary :

Staring in engine oxygen sensor b1 s1: heating circuit regulation at upper limit, upper limit exceeded causes include a bad boost pressure sensor or a vacuum leak in the system intake air heater "a", circuit also please check dtc memory of central electric control ecu will delay your vw fault.

29056 Possible Causes:

29056 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Crankshaft Position Sensor B Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Cylinder 4 Contribution/Balance Fault
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 29056 Code

  • Inspect all the connections supply voltage for fuel injector group a, short to b+
  • 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