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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> Basic Service Procedure >> Idle Speed And Ignition Timing Check Idle Speed >> Ignition Timing
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Ignition Timing

Any of following two methods may be used.

Method A 

  1. Attach timing light to loop wire as shown.
  2. Check ignition timing.
Fig 1: Locating Timing Loop
G00744964Courtesy of NISSAN MOTOR CO., U.S.A.

Method B 

  1. Remove No. 1 ignition coil.
    Fig 2: Locating No. 1 Ignition Coil
    G00744965Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Connect No. 1 ignition coil and No. 1 spark plug with suitable high-tension wire as shown, and attach timing light clamp to this wire.
    Fig 3: Prepping High-Tension Wire
    G00744967Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 4: View Of Timing Hook-ups
    G00744966Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check ignition timing.
Fig 5: Locating Timing Indicator
G00744968Courtesy of NISSAN MOTOR CO., U.S.A.