Brian, Here is the answer to your problem. The outboard lamps are wired for two separate lamp filaments, one is for low beam the other for high. The inboard lamps are single filament high beam only. The replacement bulbs you installed are single filament therefore when you installed them in the outboard position both high and low beam circuits are shorted together. DMC Joe / De Lorean Services / <dmcjoe@xxxx> Web Site: <http://www.deloreanservices.com> ----- Original Message ----- From: Lynn Metz <metzlynn@xxxx> To: <dmcnews@xxxxxxxxxxx> Sent: Saturday, January 08, 2000 11:01 AM Subject: [DML] headlights > Ok guys, I need some help. I don't know what I did but it is not right. I > decided to replace my headlights with more powerful ones, so I bought higher > wattage bulbs for the outboard (high/low) lights. I did not touch the > inboard (high) lights. When I changed the bulbs, something strange > happened. Now, when I turn on the low beams the highs come on with them > (very did though). Also, both lights in the instrument cluster are lit > (high and low indicators). I thought I shorted something out, but when I > put the original bulbs back in, they are fine. I assume that the problem is > related to the higher wattage / amperage bulbs. I know nothing about how > the headlights are wired and the wiring diagram in my manual is worthless > (not very well printed). I have replaced the 20 amp fuses with 25 amp fuses, > but this did nothing. What is causing this? I thought that the two systems > (high and low) were seperate, but they must be inter-locked somehow. Would > higher rated or different relays solve this? I really don't know how to fix > it and I would like to use these higher wattage bulbs. Any help is > appreciated. \ > Thanks, > Brian Vin #16584