Want Fog Lights to WorK Independent of Headlamps, How should I rewire fuse box? Options

[vesnyder]

I would like to get my fog lights to work independent of my headlamps. Ideally I would like the fog lamps to go on when I use the parking lights (and turn off as well) - as opposed to only going on when the headlights are on. On my 911 I was able to change some wiring on the fuse box and am hoping it will be that simple on the 914.

Thanks

[Sleepin]

Vance, I believe JWest has what you are looking for. I am pretty sure this kit does the trick:

http://www.jwesteng.com/porsche/914/fog.htm

[Mark Henry]

Jwest will give you daytime running lights, but guys mainly get it for the flashing slow traffic part of his kit.

For just daytime running lights you can DIY with Demick's instructions:
http://members.rennlist.com/demick/fogrewire.html

[montoya 73 2.0]

Jwest will give you daytime running lights, but guys mainly get it for the flashing slow traffic part of his kit.

For just daytime running lights you can DIY with Demick's instructions:
http://members.rennlist.com/demick/fogrewire.html

I used his rewiring instructions and it works perfect. Easy to understand.

[VaccaRabite]

Jwest will give you daytime running lights, but guys mainly get it for the flashing slow traffic part of his kit.

For just daytime running lights you can DIY with Demick's instructions:
http://members.rennlist.com/demick/fogrewire.html

I used his rewiring instructions and it works perfect. Easy to understand.

I did this mod the other night. Worked like a charmer.
Zach

[underthetire]

Jwest will give you daytime running lights, but guys mainly get it for the flashing slow traffic part of his kit.

For just daytime running lights you can DIY with Demick's instructions:
http://members.rennlist.com/demick/fogrewire.html

I used his rewiring instructions and it works perfect. Easy to understand.

(IMG:style_emoticons/default/agree.gif)

Well worth it for the instructions alone.

[Mike Bellis]

The ground wire for the fog light relay needs to be moved. It is connected to the High beam fuse. When the high beams are off, the terminal is grounded through the filiment. Un=plug the wire from the top of the fuse panel and ground it.

The positive turn on wire gets power from the Low beam fuse. The fog lights only work when the low beams are on. Un-plug the positive wire and move it to fuse 8 or 9, these fuses are powered by the key.

Once done the fog lights will work any time the key is on and the switch is pulled out.

[Rod]

The ground wire for the fog light relay needs to be moved. It is connected to the High beam fuse. When the high beams are off, the terminal is grounded through the filiment. Un=plug the wire from the top of the fuse panel and ground it.

The positive turn on wire gets power from the Low beam fuse. The fog lights only work when the low beams are on. Un-plug the positive wire and move it to fuse 8 or 9, these fuses are powered by the key.

Once done the fog lights will work any time the key is on and the switch is pulled out.

It has always annoyed me that it's either fogs or full beam, not both. THANKYOU!

I have the J west relay for flashing purposes, do I have to wire differently to above??

I don't understand where the negative wire is from the first paragraph above, sounds like it's earthed in the fusebox??

[Mike Bellis]

The ground wire for the fog light relay needs to be moved. It is connected to the High beam fuse. When the high beams are off, the terminal is grounded through the filiment. Un=plug the wire from the top of the fuse panel and ground it.

The positive turn on wire gets power from the Low beam fuse. The fog lights only work when the low beams are on. Un-plug the positive wire and move it to fuse 8 or 9, these fuses are powered by the key.

Once done the fog lights will work any time the key is on and the switch is pulled out.

It has always annoyed me that it's either fogs or full beam, not both. THANKYOU!

I have the J west relay for flashing purposes, do I have to wire differently to above??

I don't understand where the negative wire is from the first paragraph above, sounds like it's earthed in the fusebox??

The ground for the fog light relay comes from the high beam positive...

Lets look at the complete circuit.
from the fuse- to the lamp filiment- to chassis ground. When power is NOT applied to the high beam fuse, its potential is ground. The lamp completes the circuit to ground. When power is applied to the high fuse through the HI/Lo relay, the lamp turns on. Because the lamp is there, it is not a direct short to ground. So, with the High beams off the fog relay uses a connection on the fuse as its ground. with the high beams on, the ground potential goes away. electrical current flow only depends on having a more negative path. Not a true ground. If you remove the fog relay ground wire from the high fuse and simply ground it to the chassis, the fogs will work any time the headlights are on. The relay coil takes the load and prevents a direct short.

If you take the fog relay power terminal and put it to fuse 8 or 9 (power with key), the fogs will turn on at any time if the ground mod is done.

I have not examined the J west relay so I cant comment on its install. If you give me the scematic I would be able to help you figure it out with my mod.

[913B]

Jwest will give you daytime running lights, but guys mainly get it for the flashing slow traffic part of his kit.

For just daytime running lights you can DIY with Demick's instructions:
http://members.rennlist.com/demick/fogrewire.html

I am going to try it since i am there already fixing my hi beam problem (IMG:style_emoticons/default/evilgrin.gif) (IMG:style_emoticons/default/evilgrin.gif) (IMG:style_emoticons/default/evilgrin.gif)

[steuspeed]

JWest mod is great. Plug and play. You can return to stock if you ever want to. Love to just run the fogs in the early evening. You can also flash other teeners with your fogs anytime too.