This same exact thing happened to my 95 LX when I first got it...and the damn mechanics did the same thing and turned up the idle to fix the the problem..well after a week of that it still stalled so I just turned the idle back down only to hear this horrible knocking...turns out the high idle completely ate one of the bearing in my engine...I never did figure out what the hell was wrong so sorry this post doesnt help but I just wanted to tell my story..