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.
1992 Isuzu Stylus RSFACTORY OEM SERVICE PROCEDURE
Fuel Injectors
- Unplug fuel injector harness at injector. Using ohmmeter, measure resistance across terminals. Replace fuel injectors if resistance is not within specification. See FUEL INJECTOR RESISTANCE SPECIFICATIONS table.
- With engine running, check fuel injector operating noise. Normal operation of injectors is indicated if a regular "click" is heard, which varies with engine speed. If "click" is not heard, replace injector.
FUEL INJECTOR RESISTANCE SPECIFICATIONS
| Application | Ohms | |
|---|---|---|
| Impulse | ||
| Non-Turbo | Greater Than 1.2 | |
| Turbo | 1.2-2.2 | |
| Stylus SOHC & DOHC | Greater Than 2 | |
NOTE:
FUEL INJECTOR BALANCE TEST is also known as CHART C-2A.
Factory Service Tools
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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.
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