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Home >> Nissan-Datsun >> 1990 >> Sentra Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes >> Abnormal Idling >> No Fast Idle
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No Fast Idle

  1. Check fast idle cam.
  2. If Equipped: Perform AIR REGULATOR diagnostic chart in SYSTEM/COMP TESTS article. Use DIAGNOSTIC CHARTS DIRECTORY table in SYSTEM/COMP TESTS article to locate chart.
  3. Check blow-by hose for clogging.
  4. Ensure ignition timing is within specification.
  5. Remove vacuum hose from fuel pressure regulator. Apply vacuum and pressure and monitor symptom change.
  6. For Coolant Temperature Sensor: Enter self-diagnostic Mode III & retrieve codes. If vehicle will not start, crank engine before entering self-diagnostic Mode III.
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