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Home >> Volkswagen >> 2001 >> Jetta GL, 2.0 B >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (1.8L - Fuel Injection Ignition, Engine Code(S): AWW, AWP (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> Measuring Value Block >> Measuring value blocks, evaluating display groups 0 to 9 (Basic functions) >> Evaluating display group 1, display zone 1 - Engine speed (idling speed)

Evaluating display group 1, display zone 1 - Engine speed (idling speed)

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Appears on display Possible cause Corrective action
Less than 640 RPM or 700 RPM
  • Throttle valve control module sticking or faulty
   
More than 760 RPM or 820 RPM
  • Idling switch not closed/faulty
 
  • Large amount of unmetered air (cannot be compensated for by the idling stabilization)
 
  • Throttle valve control module sticking/faulty