I have not really checked/cleaned all the connections. Since it is not exhibiting the usual symptoms, (such as idiot lights on dim while running) and since it supposedly tested fine, I have been focusing elsewhere. I am starting the process of checking and cleaning every electrical contact I can see, especially the grounds like RT1 suggested. I am sure it will take a bit of time. I have a good lead on a used alternator out of a working 4ZE1 for a small amount of $. I am thinking I will just switch it out and see what happens. It can't hurt since I am throwing parts at it anyway! <img src="/forums/images/graemlins/angry.gif" alt="" /> Thanks for the input. Keep the suggestions coming!