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 MANUALSTOYOTA19904RUNNER 2D UTILITY, 3.0 V, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTS - EFIFUEL SYSTEMSFUEL INJECTORS TEST
1990 Toyota 4Runner 2D Utility, 3.0 V, Standard
Fuel Injectors Test
1990 Toyota 4Runner 2D Utility, 3.0 V, StandardSECTION Fuel Injectors Test
- Turn ignition off. Unplug each injector connector. Measure resistance across both terminals. See FUEL INJECTOR RESISTANCE SPECIFICATIONS table.FUEL INJECTOR RESISTANCE SPECIFICATIONS
Model (1) Resistance Pickup/4Runner 13.8 (1) Measured at 68°F (20°C). - To check injector spray pattern and volume, relieve fuel system pressure and remove injectors from engine. Disconnect fuel hose from fuel filter outlet. Use Fuel Injection Kit (09268-41080) to tee fuel injector between fuel filter and fuel pressure regulator. See Fig 1 and Fig 2 .
RENDER: 1.0x
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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.