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Home >> Nissan-Datsun >> 2009 >> Sentra SE-R >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Introduction (Qr25DE) >> Service Information >> Basic Service Procedure >> Idle Speed and Ignition Timing Check >> 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.
    • <=: Vehicle front
    • Ignition coil No. 1 (1)
    • Timing light (2)
      Fig 1: Identifying Ignition Coil No. 1 And Timing Light
      G04925729Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Check ignition timing.
    • Timing indicator (1)
      Fig 2: Checking Ignition Timing
      G04925727Courtesy of NISSAN MOTOR CO., U.S.A.

Method B

  1. Remove No. 1 ignition coil (1).
    • <=: Vehicle front
      Fig 3: Identifying No. 1 Ignition Coil
      G04925731Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Connect No. 1 ignition coil (3) and No. 1 spark plug with suitable high-tension wire (1) as shown, and attach timing light (2) clamp to this wire.
    • <=: Vehicle front
      Fig 4: Identifying No. 1 Ignition Coil, No. 1 Spark Plug And High-Tension Wire
      G04925732Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 5: [Identifying High-Tension Wire]
      G04925140Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check ignition timing.
    • Timing indicator (1)
      Fig 6: Checking Ignition Timing
      G04925727Courtesy of NISSAN MOTOR CO., U.S.A.