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.
1987 Porsche 928 AutomaticFACTORY OEM SERVICE PROCEDURE
EZF Ignition System Output Tests: Distributor
- Ensure distributor is installed properly and inspect for damage. Remove distributor rotor and check rotor suppression resistor using an ohmmeter. Reading must be 1000 ohms. Each terminal on distributor cap must also read 1000 ohms.
- If ignition trigger box is being replaced, coat base plate with Heat Conducting Paste (5 942 860 003 ) before installing new unit. DO NOT apply paste with hand. Use a wooden stick or similar object. Keep heat conducting paste off painted parts.
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.