In post #78, I wrote:

I was able to get continuity from four of the eight pins on pins in the receptacle on the picture below (upper left & right, middle center, left bottom). All the red wires... does that make sense?


Can someone please confirm that having continuity on these four red wires is correct for the gray wire? The plug pictured is on the right top of the engine, under the cover (I removed the top and right covers). It is where the gray wire from the alternator comes into the top of the engine via the front of a long plastic box.

Thanks!

Where are the four red wires? I can find no reference to that connector you pictured in post #78. :dunno:

I just watched a very interesting YouTube video that may pertain to your situation.

https://youtu.be/szc5zuK9Bo4

The video shows the signal from alt going to instrument panel not DME.

Watch the video it might have a connection to your problem.

Thanks for all the help guys! We got a brand new alternator from the eBay seller I linked to below installed this afternoon. Everything looks good so far :thumbup:

We'll have to wait until I take it for a jaunt tomorrow and then see how it behaves when I take a trip across town next week when the cold mornings come back.

On the connector, wpoll, it's under middle of the right panel (facing the front of the engine) that comes off after you remove the middle engine cover with four T25 bolts. The plug goes in sideways (near where you'd remove the valve cover I think). The gray wire from the alternator goes in the long plastic box from the front to the back of the engine.

Off to a dinner party but going to use my better half's vehicle tonight since it's over the mountain and I want to do a short trip in mine first.

I appreciate all the help!

A short update: I've taken four trips since replacing the alternator with a brand new one. Each time I checked the voltage and it has been around 13.8 V almost immediately.

Today it was a rare day below freezing and no warning lights or error codes. A little delay before seeing the voltage display because of the low temperature warning. The lack of warning lights staying on and lack of error codes is a good sign.

Thanks to everyone who helped me resolve this!

Hooray! You nailed it.. great result. :thumbup: