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.
1993 Acura Legend Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Ignition Timing Adjuster
- Unplug ignition timing adjuster 3-pin connector. Ignition timing adjuster is located next to control box on firewall. Refer to Fig. Fig 1 .
- Resistance should be 3500-6500 ohms. If resistance is as specified, go to step 3. If resistance is not as specified, replace ignition timing adjuster.
- Measure and record resistance between "A" and "B" terminals on timing adjuster side of harness. Measure and record resistance between "B" and "C" terminals on same side of connector. Add resistance values together. If total of resistance values is not 3500-6500 ohms, replace ignition timing adjuster.
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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