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Old 06-14-2012, 03:56 AM   #1
Drphil's Avatar
Join Date: Feb 2012
Location: south carolina
Posts: 108
Question is this an indication my Voltage reg. and Alt. are going bad?

Recently replaced the A/O sep and MAF.

upon hooking up the battery and getting everything re-set, took it for a couple drives getting the DME to re-learn and re-set i notice there is still a slight quiver with the idle, and thought maybe i was dealing with a vac leak , but upon closer evaluation, i see there is a very slight quiver in the dome and door lights too.

My first thought was the battery ground or connections- check, this is good.
next i checked the voltage across the battery while running at it is like 17-18v!!

So is it the VR, Alt, or both? this seems high. My 914 is 16v, and doing some research on pelican site, they indicate that a V of 17-18 would indicate a voltage regulator. That is internal, so am i stuck with replacing the whole thing?


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Old 06-14-2012, 09:32 AM   #2
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Join Date: Feb 2005
Location: It's a kind of magic.....
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The voltage regulator can be swapped out with a new one, look at a VW dealer as they use the same Bosch part number and are about 1/3 the price of one from Porsche (if you can get them to sell you one as they usually try to sell you an altenator).

Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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