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.
2006 Lexus GX 470FACTORY OEM SERVICE PROCEDURE
Service Data
SERVICE DATA TABLE - IGNITION
| Spark plug | Recommended spark plug | DENSO made | SK20R11 |
| NGK made | 1FR6A11 | ||
| Electrode gap | 1.0 to 1.1 mm (0.039 - 0.043 in.) | ||
| Maximum electrode gap | 1.3 mm (0.051 in.) | ||
| Correct insulation resistance | 10 MΞ© or more | ||
| VVT sensor | Resistance | Cold | 835 to 1, 400 Ξ© |
| Hot | 1, 060 to 1, 645 Ξ© | ||
| Crankshaft position sensor | Resistance | Cold | 1, 630 to 2, 740 Ξ© |
| Hot | 2, 065 to 3, 225 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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