Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1998 Infiniti Q45 BaseFACTORY OEM SERVICE PROCEDURE
Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | |
|---|---|---|
| Distributor Hold-Down Bolt | 12 (16) | |
| Fuel Temperature Sensor | 11-18 (15-25) | |
| Fuel Pump Lock Bolts | 17-22 (14-30) | |
| Heated Oxygen Sensor (HO2S) | 30 (41) | |
| Intake Manifold Collector Bolt | 12-14 (16-19) | |
| INCH Lbs. (N.m) | ||
| Injector-To-Fuel Rail Bolt | ||
| I30 | 26-33 (2.9-3.8) | |
| Q45 | 20-27 (2.3-3.0) | |
Factory Service Tools
Use the Manual With the Right Hardware
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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.