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Home >> Nissan-Datsun >> 2002 >> Sentra SE-R L4-2.5L (QR25DE) >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Ignition Timing >> Testing and Inspection
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Ignition Timing: Testing and Inspection

Any of following two methods may be used.

Method A
1. Slide the harness protector of ignition coil No. 1 to clear the wires.




2. Attach timing light to the wires as shown in the figure.
3. Check ignition timing.

Method B




1. Remove No. 1 ignition coil.







2. Connect No. 1 ignition coil and No. 1 spark plug with suitable high-tension wire as shown, and attach timing light clamp to this wire.




3. Check ignition timing.


For procedures on how to adjust the timing, Adjustments