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Registered
Join Date: May 2002
Location: Santa Barbara, CA
Posts: 4,821
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Jack, the sensor is most likely fine. With the DVM you measure the RMS voltage of the sensor. With an oscilloscope you measure peak-to-peak. With a sine wave the peak-to-peak value is 2.8 *RMS. See here:
(amazing how smart google is.....  )
I believe the loose +12V is what caused your issues. It is probably what supplies power to the injectors and coil packs and with that supply compromised I can see an intermittent no-start.
Ingo
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1974 Targa 3.6, 2001 C4 (sold), 2019 GT3RS, 2000 ML430
I repair/rebuild Bosch CDI Boxes and Porsche Motronic DMEs
Porsche "Hammer" or Porsche PST2, PIWIS III - I can help!!
How about a NoBadDays DualChip for 964 or '95 993
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