Thread: 911SC no spark
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Join Date: Apr 2009
Location: Radcliff, Kentucky
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Cap and rotor new 200 miles ago, and still look new.

No spark at the coil, no spark at the spark plug.

11.9V between pins 15 and 31/1 (system power for CDI unit)

67Ω between 31/1 and engine mount bolt head (system ground).

Seems like a CDI problem.
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1980 911SC Targa • Petrol Blue Metallic • Cork special leather • Sport Seats • Limited Slip • 964 Cams • SSIs • Rennshifter
• 1990 250D Opawagen • 1995 E220T Sportline Familienwagen • 1971 280SE Beverly... hills that is • 1971 Berlina 1750 Faggio •
Old 08-11-2025, 04:18 PM
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