Cody Bush

Hey guys, I am the owner of a 98.5 24valve with the factory bi-level headlights.
I finally settled on doing the sport headlight conversion after researching my multiple options.
I ended up going with a prebuilt harness from Diesel Auto Power Upgraded Sport Light Harness with Relays - 9402SLH - Diesel Auto Power, LLC

Anyway, i finished the install with new housings, today. The harness came with no kind of instructions but, its plug n play supposedly.
Now I have all 4 lights on with my low beams and the passenger side has no light, with the hi beams.

What did I do wrong? Did i just wire the headlights backwards? Or...?

Dieselbuilder

I made my own harness it took me awhile to figger it out try switching the plus from light to light

cougar

I built my own as well. Easy if you know how, and a LOT cheaper.

torquefan

I also built my own, and don't really know of any possible issues with the specific harness you are using. What I can point out though, is that the Sport lamps are made to use a 9004 bulb on the inners, and a 9007 bulb on the outers. While these bulbs will physically interchange with one another, they are wired differently from each other and will not work properly if you plug, say, a 9004 into the connector that is wired for a 9007. I suspect that you may just have to verify that the proper bulbs are in the right holes, and the proper connector is going to each bulb.

hzemax

I had exactly the same problem. Google helps to figure out the connections.
9007 is low and high beam 9004 is only high beam. The grounding between those two is different and probably input too.

Way to go americans. You put 2 differend lightbulbs with the same plug and differend input connetion. God help ya all