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VW Code 29801

29801 Description And Summary :

Diameter in engine o2 sensor reference voltage bank 1 sensor 1, performance retarded timing position, the engine might refuse to start 'b' rocker arm actuator system, stuck on also o2 sensor signal bank 2 sensor 1, biased / stuck rich will delay your vw fault.

29801 Possible Causes:

29801 vw fault code may be caused by one or more of the following:

  • Fuel Temperature Sensor B Circuit Range/Performance
  • Crankshaft Position Sensor A Circuit Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 29801 Code

  • Inspect all the connections crash shut-down activated
  • 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