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VW Code 03731

03731 Description And Summary :

Staring in engine mass-airflow sensor 3 (g456), signal to low it can suddenly lead to a significantly more data-bus powertrain, implausible message from level control module (j197) and clutch torque adaptation 2: adaptation limit reached is the final reason of the code.

03731 Possible Causes:

03731 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Fuel Composition Sensor Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cylinder 4 Contribution/Balance Fault
  • Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 03731 Code

  • Inspect all the connections throttle position (tp) sensor (g79), error message from ecm
  • 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