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.
1998 Acura 2.3CL StandardFACTORY OEM SERVICE PROCEDURE
Ignition Coil Test
- Turn ignition off. Disconnect ignition coil 4-pin connector. Measure primary winding resistance between ignition coil connector terminals No. 2 (Black/Yellow wire) and No. 3 (Green wire). Resistance should be .36-.44 ohm at 68°F (20°C). See Fig 1.
- Measure secondary winding resistance between ignition coil connector middle terminal No. 2 (Black/Yellow wire) and secondary terminal (coil tower). Resistance should be 10,800-16,200 ohms at 68°F (20°C).
- Measure resistance between ignition coil connector terminals No. 3 (Green wire) and No. 4 (Blue wire). Replace coil if resistance is not within specification. If resistance is as specified, check for continuity between ignition coil terminals No. 1 (Black/Yellow wire) and No. 2 (Black/Yellow wire). If continuity does not exist, replace ignition coil.
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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