Ignition Coil Resistance

WARNING: This page is about a different car, the 1998 Infiniti Q45 and 1998 Infiniti I30. However, it is still accessible from the selected car via links, so may be relevant.

On I30, disconnect ignition coil harness connector. Using ohmmeter, check for continuity between coil terminals No. 1 and 2. If continuity is not present, replace ignition coil. See Fig 1 .
On Q45, disconnect ignition coil harness connector. Using ohmmeter, check resistance between coil terminals No. 1 and 2 (cylinders No. 1 and 2) and terminals No. 2 and 3 (cylinders No. 3 and 8). See Fig 2 . Resistance should be approximately .7 ohm. If resistance is not as specified, replace ignition coil.

Fig 1: Checking Ignition Coil Resistance (I30)

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

Fig 2: Checking Ignition Coil Resistance (Q45)

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