Method B

WARNING: This page is about a different car, the 2005 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.

Remove No. 4 ignition coil.

Fig 1: Removing No. 4 Ignition Coil
Courtesy of NISSAN MOTOR CO., U.S.A.
Connect No. 4 ignition coil and No. 4 spark plug with suitable high-tension wire as shown, and attach timing light clamp to this wire.

Fig 2: Attaching Timing Light Clamp To No. 4 Ignition Coil Wire
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Identifying High Tension Wire
Courtesy of NISSAN MOTOR CO., U.S.A.
Check ignition timing.

Fig 4: Checking Ignition Timing
Courtesy of NISSAN MOTOR CO., U.S.A.