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Registered
Join Date: May 2002
Location: Santa Barbara, CA
Posts: 4,819
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Check the SINGLE flywheel sensor with a voltmeter set to AC while cranking. If you don't see about 2V AC the sensor is bad.
Futher, make sure you have power to the DME with the ignition switch in ON. Measure inside the DME connector. One other way to tell is to listen to the flap when turning the ignition on. You should head a faint click from the engine bay at the resonance flap valve is actuated.
Unfortunately there are not too many easy clues (like the vibrating ICV) with a 3.6 DME. Given that you have a SW chip your's can only be a 964 or early 993. Which one is it?
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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