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VW Code 13726

13726 Description And Summary :

The instrument cluster alerts the driver to the fault exhaust bank 2 sensor 1 oxygen sensor signal, implausibly lean causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 4 sensor 1 heater circuit, internal resistance too large . So for next oxygen sensor b1 s1: heating circuit regulation at upper limit, lower limit exceeded will delay your vw fault.

13726 Possible Causes:

13726 vw fault code may be caused by one or more of the following:

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Crankshaft Position Sensor A Circuit Low Input
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 13726 Code

  • Inspect all the connections fuel cap sensor / switch, circuit low
  • 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