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.

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HOMESERVICE MANUALSTOYOTA19994RUNNER LIMITED, 3.4 N, RWDREPAIR AND DIAGNOSISENGINE PERFORMANCESPECIFICATIONSENGINE CONTROLS - SERVICE & ADJUSTMENT SPECIFICATIONSIGNITION SYSTEMIGNITION TIMINGV8 IGNITION TIMING

1999 Toyota 4Runner Limited, 3.4 N, RWD

V8 Ignition Timing

1999 Toyota 4Runner Limited, 3.4 N, RWDSECTION V8 Ignition Timing

V8 IGNITION TIMING (Degrees BTDC @ Idle) ⁽¹⁾

Application

⁽²⁾ Base Timing

⁽³⁾ ECM Controlled Timing

Land Cruiser & Tundra

5-15

⁽⁴⁾

⁽¹⁾	Check with engine at normal operating temperature, transmission in Neutral, parking brake applied, and A/C and all accessories off.

⁽²⁾	With Jumper Wire (SST 09843-18020) installed between terminals TC and E1 on data link connector No. 1.

⁽³⁾	With jumper wire removed from data link connector No. 1.

⁽⁴⁾	Information is not available from manufacturer.

RENDER: 1.0x

NO RELATED

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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.