LED Headlights: Turning on the fogs turns on the high beams, too!, New behavior, fogs worked normally until LED headlights installed. Options

[JeffBowlsby]

I *finally* got around to doing this mod since I put in LED headlights a couple years ago, so I now have Hi & Lo beams with the foglights on.

Its very simple to do. Nothing was cut or damaged, no additional wire length was added or terminals crimped on. Thanks to all contributors especially Bruce, and Jerry for figuring this out.

On my '74, I found an extra trispade lug in my stash and mounted it under the existing ground lug for the chassis harness located right behind the fusepanel. Swapped the white/blue stripe wire from the rear of fuse #1 to the trispade lug, and its done. The original wire is plenty long, and its new location provides not possibility for shorting out to anything. I suspect a similar single lug could be sourced somewhere if you don't have an extra trispade lug from the original fuel injection ground.

[DC_neun_vierzehn]

I *finally* got around to doing this mod since I put in LED headlights a couple years ago, so I now have Hi & Lo beams with the foglights on.

Its very simple to do. Nothing was cut or damaged, no additional wire length was added or terminals crimped on. Thanks to all contributors especially Bruce, and Jerry for figuring this out.

On my '74, I found an extra trispade lug in my stash and mounted it under the existing ground lug for the chassis harness located right behind the fusepanel. Swapped the white/blue stripe wire from the rear of fuse #1 to the trispade lug, and its done. The original wire is plenty long, and its new location provides not possibility for shorting out to anything. I suspect a similar single lug could be sourced somewhere if you don't have an extra trispade lug from the original fuel injection ground.

Oh nice. I have an extra tri-spade. I’m going to try this on my ‘73.

[87m491]

Having done this mod pretty much this way (though I also jumpered the fog trigger wire from the headlight switch (switched) to headlight switch ignition hot so fogs anytime 12v is on. You don't really even need a tri spade connector. I had a bunch of spare bits from and MSD install which contained a double sided male spade connector, but Take an unused male spade connecter and cut off the spade. Insert it 1/2 way into the female of the wht/blu wire and then slide the other 1/2 of the spade under the washer of the common ground. Done.

I *finally* got around to doing this mod since I put in LED headlights a couple years ago, so I now have Hi & Lo beams with the foglights on.

Its very simple to do. Nothing was cut or damaged, no additional wire length was added or terminals crimped on. Thanks to all contributors especially Bruce, and Jerry for figuring this out.

On my '74, I found an extra trispade lug in my stash and mounted it under the existing ground lug for the chassis harness located right behind the fusepanel. Swapped the white/blue stripe wire from the rear of fuse #1 to the trispade lug, and its done. The original wire is plenty long, and its new location provides not possibility for shorting out to anything. I suspect a similar single lug could be sourced somewhere if you don't have an extra trispade lug from the original fuel injection ground.

Oh nice. I have an extra tri-spade. I’m going to try this on my ‘73.

[horizontally-opposed]

Curious if anyone else spotted these...

https://www.design911shop.com/p/bulb-set-h4...RhoCw0QQAvD_BwE

Interesting to see PAG behind these, complete with approval papers that suggest downsides (such as blinding other drivers) have been addressed satisfactorily:

https://www.porsche.com/international/acces...oval-documents/

Pelican Parts thread with posts on their legality in Germany/Austria/etc here:

https://forums.pelicanparts.com/porsche-911...nversion-2.html

I bought LED bulbs a long time ago, but had concerns about using them in my H4 housings. Have considered trying the Holley 7-inch LEDs, which look more period correct than most offerings, but this may change my direction.