WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

1GR-FE:

Service Data - Ignition (1GR-FE)

Spark plug
Recommended spark plug	DENSO made	K20HR-U11
	NGK made	LFR6C-11
Electrode gap		1.0 to 1.1 mm (0.039 to 0.043 in.)
Maximum electrode gap		1.41 mm (0.056 in.)
VVT sensor
Voltage	VVT1+-VVT1 -	3.375 to 4.950V (Hi), 0.450 to 1.375V (Lo)
	VVT2+ - VVT2 -	3.375 to 4.950V (Hi), 0.450 to 1.375V (Lo)
Crankshaft position sensor
Resistance	at Cold	1,630 to 2,740 Ω
	at Hot	2,065 to 3,225 Ω

2UZ-FE:

Service Data - Ignition (2UZ-FE)

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 MΩ or more
VVT sensor
Resistance	at Cold	835 to 1,400 Ω
	at Hot	1,060 to 1,645 Ω
Crankshaft position sensor
Resistance	at Cold	1,630 to 2,740 Ω
	at Hot	2,065 to 3,225 Ω

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.

Safety Warning

Service Data

Use the Manual With the Right Hardware

When to See a Mechanic

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