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mysocal911 mysocal911 is online now
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Join Date: Feb 2014
Location: Lomita, CA
Posts: 2,738
Quote:
Originally Posted by david3299 View Post
Swapped my 87 911 3.2 ECU with a friends' and the car started. Checked the new battery voltage on the car while idling. It read 15.6 VDC and I slowly applied gas and the voltage across the battery showed 17.9 VDC. Basically, the alternator voltage regulator is defective. This over-voltage damaged my ECU.

THANKS FOR ALL YOUR HELP..
Fairly common, but less common than an intermittent spark.
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Dave
Old 04-17-2020, 04:49 PM
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