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Curb Idle Speed Check (1.8L)

  1. Ensure engine is at operating temperature and all accessories are off. Place transmission in Neutral and front wheels are in a straight-ahead position. Insert paper clip in CRC (tachometer) filter connector and connect tachometer to engine. See Figure .
  2. Check ignition timing and adjust if necessary. Run engine at 2000-3000 RPM for more than 5 seconds. Allow engine to idle for 2 minutes. Check idle speed. Refer to IDLE SPEED SPECIFICATIONS  table. If idle speed is not within specification, diagnosis of Idle Speed Control (ISC) system is necessary. See appropriate G - TESTS W/ CODES article.