Disconnect tachometer (idle speed) check connector, located on left side of engine compartment, next to fuse/relay panel. Connect tachometer to check connector.
Disconnect ignition coil for No. 1 cylinder. Attach Ignition Timing Adapter Coil (KV109D0010 ) and Adapter Harness (KV10114200 ) as shown. See Fig 1 . Align inductive pick-up in direction of arrow shown on ignition timing adapter coil.
Start engine and warm to normal operating temperature. Run engine at 2000 RPM for 2 minutes.
Perform self-diagnostic procedure. See G - 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.
Check ignition timing. See V6 IGNITION TIMING Table. See Figure . 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 1: Connecting Timing Adapter Coil & Harness (300ZX)

Courtesy of NISSAN MOTOR CO., U.S.A.

V6 IGNITION TIMING (Degrees BTDC@RPM)

Application

Man. Trans.

⁽¹⁾ Auto. Trans.

Maxima

15@700-800

Pathfinder & Pickup

15@700-800

300ZX

Non-Turbo

15@650-750

15@720-820

Turbo

15@650-750

15@700-800

⁽¹⁾	Automatic transmission/transaxle in Neutral.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

V6 Ignition Timing: 300ZX