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 Plymouth Laser Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Ignition Coil
IGNITION COIL RESISTANCE (1)
| Application | Primary Ohms | Secondary Ohms | ||||||
|---|---|---|---|---|---|---|---|---|
| 1.8L | .90-1.10 | 19,000-27,000 | ||||||
| 2.0L | .77-.95 | 10,300-13,900 | ||||||
| 2.2L, 2.5L, 3.0L (VIN 3) & 3.3L | ||||||||
| Diamond (Epoxy) | .97-1.18 | 11,000-15,300 | ||||||
| Diamond (2) | 1.34-1.55 | 15,000-19,000 | ||||||
| Diamond (3.3L) | .52-.63 | 11,600-15,800 | ||||||
| Marshall (3.3L) | .53-.65 | 7000-9000 | ||||||
| Essex | 1.34-1.55 | 9000-12,200 | ||||||
| Prestolite | 1.34-1.55 | 9400-11,700 | ||||||
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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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