2000 Infiniti Q45 BaseFACTORY OEM SERVICE PROCEDURE

Firing Order & Timing Marks: Notes

NOTE: For firing order, see Figure or Figure . Q45 uses a distributorless ignition system. On Q45, adjustments to timing are made by rotating camshaft position sensor after loosening mounting bolts.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.