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.
1990 Isuzu Impulse AutomaticFACTORY OEM SERVICE PROCEDURE
High Tension Wire Resistance
HIGH TENSION WIRE RESISTANCE
| Application | Resistance | ||
|---|---|---|---|
| Amigo & Pickup | |||
| 2.3L | |||
| Coil Wire | 2000-4700 | ||
| Spark Plug Wires | 9600-22,400 | ||
| 2.6L | |||
| Coil Wire | 3300-7000 | ||
| Spark Plug Wires | 9600-22,600 | ||
| Impulse | |||
| Coil Wire | 2740-6380 | ||
| Spark Plug Wire (Cylinder No.) | |||
| No. 1 | 5800-13,300 | ||
| No. 2 | 5200-12,000 | ||
| No. 3 | 4300-9900 | ||
| No. 4 | 4200-9600 | ||
| Trooper | |||
| Coil Wire | 3300-22,600 | ||
| Spark Plug Wires | 9600-22,600 | ||
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.