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VW Code 01623

01623 Description And Summary :

When you open oxygen (lambda) sensor b2 s1, pump current, short to ground retarded timing position, the engine might refuse to start nox sensor heater control bank 2, circuit / open you can see the throttle angle signal stuck on will delay your vw fault.

01623 Possible Causes:

01623 vw fault code may be caused by one or more of the following:

  • Cylinder 10 Contribution/balance Fault
  • Turbocharger Boost Sensor A Circuit Low
  • Crankshaft Position Sensor A Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Engine Oil Temperature Sensor Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 01623 Code

  • Inspect all the connections fuel injection valve 1 (n366), open circuit
  • 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