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.
1987 Toyota 4Runner SR5, 22-RTEFACTORY OEM SERVICE PROCEDURE
Cold Start Injector Time Switch
Connect ohmmeter leads to both terminals of switch. See Fig 1 and Fig 2. Readings should be as specified for corresponding temperatures. See COLD START INJECTOR TIME SWITCH RESISTANCE table. If not, replace switch.
COLD START INJECTOR TIME SWITCH RESISTANCE
| Terminals | Resistance (Ohms) | |
|---|---|---|
| STA to STJ | ||
| Below 86°F (30°C) | 20-40 | |
| Above 104°F (40°C) | 40-60 | |
| STA to Ground | 20-80 | |
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.