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 MANUALSPORSCHE1982928 AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETUNE-UPBOSCH ELECTRONIC IGNITION SYSTEMTESTINGPICK-UP COIL RESISTANCE CHECKALL OTHER MODELS
1982 Porsche 928 Automatic Trans
All Other Models
1982 Porsche 928 Automatic TransSECTION All Other Models
- Turn ignition switch "OFF", and disconnect harness connector from control module. Set ohmmeter to x100 scale. Connect ohmmeter leads to terminals 7 and 31d of harness connector. See Figure. Measure pick-up coil resistance.
- If resistance readings are not to specifications, remove connector from distributor, and take reading at pick-up coil pins at distributor.
- If readings are still not to specifications, replace pick-up coil. If correct readings are obtained at distributor, but not at harness connector, replace harness.PICK-UP COIL RESISTANCE SPECIFICATIONS
Application Ohms BMW 520-700 Fiat 890-1285 Mercedes-Benz 500-700 Porsche 928 485-700 Volvo GLT Turbo 4-Cylinder 950-1250 GLE V6 540-660
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.