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Home >> Infiniti >> 1995 >> J30 >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments 3.0L >> Adjustment >> Idle Speed

Idle Speed

  1. Warm engine to normal operating temperature. Check and adjust ignition timing (if necessary). See IGNITION TIMING  .
  2. Check idle speed. If idle speed is not within specification, disconnect Idle Air Control Valve-Auxiliary Air Control (IACV-AAC) valve harness connector. Turn idle speed screw on IACV-AAC valve unit. See the IDLE SPEED & CO LEVEL  table.
  3. Connect IACV-AAC valve harness connector. Run engine at 2000 RPM for about 2 minutes under no load and then return to idle. Idle speed should be as specified.
IDLE SPEED & CO LEVEL

Application (1) Idle RPM % CO Level
J30 670-770 0.2-8.0
(1) With transmission in Neutral and no electrical load on engine.
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