So my 92 Loyale with a EA-82 tbi is idling really slow. It hovers right around 400rpm. The thing is it only does this when warm and when in gear (3 sp auto). I noticed a couple of days ago, the voltage meter acting crazy. Shooting up to 17 amps, then down to 8 or so. Could the drop in idle be due to a shot voltage regulator? I was planning on dropping in a new alternator this weekend and was wondering if I should do anything else while I had the car torn apart.