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 MANUALSSUBARU1997IMPREZA L, 2D COUPE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGIGNITION CHECKSIGNITION COIL RESISTANCE
1997 Subaru Impreza L, 2D Coupe, Standard
Ignition Coil Resistance
1997 Subaru Impreza L, 2D Coupe, StandardSECTION Ignition Coil Resistance
- Disconnect 3-wire connector from ignition coil assembly. Using an ohmmeter, check primary resistance between terminals No. 1 and 2 for one coil. See Fig 1 .
- Check primary resistance between terminals No. 2 and 3 for remaining coil. Resistance should be as specified. See IGNITION COIL RESISTANCE table. If resistance is not as specified for each coil, replace ignition coil assembly.
- To test secondary resistance, connect one ohmmeter lead to tower at one end of coil. Connect remaining ohmmeter lead to tower at opposite end of same coil.
- Repeat test for other coils. If resistance of each coil is not as specified, replace ignition coil assembly.
IGNITION COIL RESISTANCE - OHMS @ 68°F (20°C)
| Application | Primary | Secondary | |
|---|---|---|---|
| 1.8L | |||
| M/T | .40-1.00 | 17,900-24,500 | |
| A/T | .40-1.00 | 10,400-15,600 | |
| 2.2 | |||
| A/T | .40-1.00 | 17,850-24,150 | |
RENDER: 1.0x
NO RELATED
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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.