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Home >> Nissan-Datsun >> 2012 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction (Qr25DE) >> Service Information >> Basic Service Procedure >> Idle Speed and Ignition Timing Check >> Ignition Timing >> Method B
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Method B

  1. Remove No. 1 ignition coil (1). Refer to , "REMOVAL AND INSTALLATION ".
    • โ†: Vehicle front
    Fig 1: Identifying Ignition Coil No. 1
    G04925731Courtesy of NISSAN NORTH AMERICA, INC.
  2. Connect No. 1 ignition coil (3) and No. 1 spark plug with suitable high-tension wire (1) as shown in the figure, and attach timing light (2) clamp to this wire.
    • โ†: Vehicle front
    Fig 2: Identifying Ignition Coil No. 1, Spark Plug No. 1 And High Tension Wire
    G04925732Courtesy of NISSAN NORTH AMERICA, INC.
    Fig 3: Identifying Electrode Dimensions And High-Tension Wire
    G04925140Courtesy of NISSAN NORTH AMERICA, INC.
  3. Check ignition timing.
    • Timing indicator (1)
    Fig 4: Checking Ignition Timing Using Timing Indicator
    G04925727Courtesy of NISSAN NORTH AMERICA, INC.