First of this what I have, Silverstar high and low beams, Painless wiring kit for low on with the high, and last I have a set of PIAA's that have the hot for the relay hooked into the running lights. While driving with the low beams on driver side low goes out. So I check the bulb, looks good. So I put the high beams on and all the lights are on, even the low beam that was out, so I figure that the fuse in the panel on the hood blew. Then a couple minutes later with the high beams on and of course the PIAAs, both PIAAs went out and the low beams. But when I put the low beams on the pass. side only comes on. I checked the fuse on the PIAAs and it was good but atleast one of the bulbs are out and they are two weeks old. After this happened I noticed that the volts were only reading 11.5-12 volts and they normally run 14 or 15. And of course I just ran out of warrenty about 1000 miles ago. I can use all the help I can get. I will definately look into this more tomorrow. :help:

This morning I get in and start her up, voltage ran low as normal on start up then it climbed to normal. I wonder if there was a power surge or something but that wouldn't explain the PIAAs blowing the bulbs and not the fuse. I guess i'll change the grey highlight fuse first and go from there.

Well I went out to lunch check bulbs, both PIAAs and driver low beam. I got a new hdlp low relay since I thought that this is what was wrong, so I may have an extra now. But what does that relay control, because two of the prongs 30 & 87 look like they have burnt soot on them. And while I was out volts were running in the 14-15 range then they dropped to 12-13. Whats the best way to check the alternator? And thanks for any help.

Are youn using a digital voltmeter. Dash meters aren't accurte enough to measure output. To check altenator, mesure at altenator or battery post at idle and again at about 1800rpm. If you see a significant rise to 14v + volts, the altenator is working, how well you don't know. To see how much current its putting out you nneed a tester like battery shops use. It will check the altenator under load.