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.
2004 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Service Data
Identifying Ignition Service Data
| Ignition coil | Standard | 10 - 14V | |
| Spark plug | Recommended spark plug | ND made | SK20R11 |
| NGK made | IFR6A11 | ||
| Correct electrode gap for new spark plug | 1.0 - 1.1 mm (0.039 - 0.043 in.) | ||
| Maximum electrode gap for used spark plug | 1.3 mm (0.051 in.) | ||
| Crankshaft position sensor | Resistance | Cold | 1,630 - 2,740 Ξ© |
| Hot | 2,065 - 3,225 Ξ© | ||
| Camshaft position sensor | Resistance | Cold | 835 - 1,400 Ξ© |
| Hot | 1,060 - 1,645 Ξ© | ||
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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