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Join Date: Oct 2006
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Ah, how did I forget! I knew the early 924 turbo had a Siemens-Hartig ignition, but forgot!
The 924 sensor (93160602100) looks identical to the original Alpina "Rafi" branded sensor. It is also no longer available from Porsche. The 924 world thinks they are the only ones with this problem. You could try to find a 924 Turbo sensor, but the Porsche people are hoarding them now, too.
If you think the 924Turbo sensor would work, the Porsche community has much better resources, and could (should) start pushing Porsche Classic to re-release a replacement sensor. They are surprisingly responsive in supporting their older cars these days.
Also, have you looked at my threads on this board? A previous owner of one of my cars appears to have sourced a replacement at some point. Attached are pictures of the original Rafi sensor, and another Bosch looking one, with a part number take on it. Another clue?
You are well on the way though. Great work! Look forward to hearing if it works on the car.
1979 B7 TurboCoupe #096
1979 B7 TurboCoupe #124
1980 323i Baur