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Old 10-24-2012, 11:26 AM   #31
Zoef zoef
Gnarly Adventurer
Joined: Apr 2009
Location: Finn°y Island, near Stavanger, Norway
Oddometer: 398

The measured 9V during cranking is somewhat on the low side.
On your problem, one of the classic symptoms associated with HES failure is the rpm on your dash going haywire, ie bouncing up and down. HES failure is usually the wires shorting, this can result in having more switching than one per revolution.
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