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V6 Ignition Timing

Fig 1: Locating Ignition Timing Marks
G121207Courtesy of NISSAN MOTOR CO., U.S.A.
  1. Disconnect tachometer (idle speed) check connector, located on left side of engine compartment, next to fuse/relay panel. Connect tachometer to check connector.
  2. Disconnect ignition coil for No. 1 cylinder. Attach Ignition Timing Adapter Coil (KV109D0010) and Adapter Harness (KV10114200) as shown. See Fig 2 . Align inductive pick-up in direction of arrow shown on ignition timing adapter coil.
  3. Start engine and warm to normal operating temperature. Open engine compartment hood. Run engine at 2000 RPM for 2 minutes.
  4. Perform self-diagnostic procedure. See TESTS W/CODES article. Check for smooth engine operation. Increase engine speed to 2000 RPM, 2 or 3 times, then allow engine to return to idle.
  5. Check ignition timing. See V6 IGNITION TIMING table. See Fig 1 . If ignition timing is incorrect, loosen hold-down bolt and turn crank angle sensor. With ignition timing correctly set, check idle speed and mixture.
Fig 2: Connecting Timing Adapter Coil & Harness (300ZX)
G202018Courtesy of NISSAN MOTOR CO., U.S.A.
V6 IGNITION TIMING (Degrees BTDC @ RPM)

Application Man. Trans. (1) Auto Trans.
300ZX 15 @ 650-750 15 @ 720-820
(1) Auto. trans. in Neutral.