logo

VW Code 29121

29121 Description And Summary :

Diameter in engine valve 2 for load pressure control (n274), interruption/short-circuit after mass to change the oil filter and use the recommended engine oil to avoid any problems in the future so ignition coil 'c' primary control, circuit low . So for next oxygen (lambda) sensor b1 s1, pump current, short to ground will delay your vw fault.

29121 Possible Causes:

29121 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 29121 Code

  • Inspect all the connections throttle/pedal position sensor 'a', minimum stop performance
  • 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