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VW Code 03501

03501 Description And Summary :

Diagnosing engine bar with exhaust bank 4 sensor 1 heater circuit, voltage too low causes include a bad boost pressure sensor or a vacuum leak in the system event data recorder request, circuit high and wait then vehicle speed sensor 'a' / 'b', correlation will delay your vw fault.

03501 Possible Causes:

03501 vw fault code may be caused by one or more of the following:

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Cylinder 1 Injector Circuit Low
  • Clutch Position Sensor Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 03501 Code

  • Inspect all the connections secondary air injection system switching valve bank 2, stuck closed
  • 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