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Home >> Audi >> 1983 >> 5000 Base >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - Diesel >> Adjustments >> Idle Speed
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Idle Speed

  1. Warm engine to normal operating temperature (oil temperature of 122-158°F or 50-70°C). Turn idle speed control knob on instrument panel counterclockwise to stop.
  2. Connect tachometer (VW 1367 or Siemans 451) according to instructions. Loosen lock nut to adjust idle speed. Turn screw in to raise idle speed, or out to lower idle speed. Retighten lock nut. See Fig 1 .
Fig 1: Adjusting Idle and Maximum Speed
G34585
IDLE SPEED SPECIFICATION

Application RPM
4-Cylinder 900-1000
5-Cylinder 720-780