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 Infiniti G20 AutomaticFACTORY OEM SERVICE PROCEDURE
Ground Circuit
- Turn ignition off. Disconnect power transistor and ignition coil harness connectors. Check continuity between ignition coil terminal "b" to power transistor terminal "e" (Green/Yellow wire). See Fig 1 .
- Connect ohmmeter leads between power transistor terminal "d" and ground. See Fig 1 . If continuity does not exist at all these terminals, check and repair wiring harness or connectors.
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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