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Registered
Join Date: May 2002
Location: Santa Barbara, CA
Posts: 4,850
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Next, ohm out the two flywheel sensors. Disconnect the 35-pin DME connector and measure inside the connector. Measure resistance between pin 25 and pin 26 (reference sensor) and resistance between pin 8 and pin 27 (engine speed sensor). Both should show around 900 ohm. You can also crank and should see about 1.5V AC with the meter connected to pin 8 and pin 27.
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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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