View Full Version : MSD window switch yellow wire?
In the directions it says to connect it to the ground wire of the thing you want to activate. My solenoids are grounded. Do I just connect this wire to this ground wire off the solenoids? I guess what I'm asking is do I ground the solenoids to this yellow wire?
GOT SPD
02-28-2004, 04:07 AM
There is already a thread that covers this. http://www.ls2.com/forums/showthread.php?s=&threadid=6644
The link takes you to a posted diagram andif you are running a fpss put it in line with the window switch and the noids.
Can't I just unground the solenoid ground wire and connect the orange wire to the solenoid ground wire? This will then be the ground for the solenoids?:help:
GOT SPD
02-28-2004, 05:21 AM
Originally posted by API
Can't I just unground the solenoid ground wire and connect the orange wire to the solenoid ground wire? This will then be the ground for the solenoids?:help:
NO, you still need to run it through a relay. The window switch disrupts the ground when the rpm window is closed and as soon as the window opened it will complete the ground.
GOT SPD, I'll read right from the directions.
Yellow= This is the circuit ground wire(normally open switch to ground). It connects to the ground side of the device you plan to activate.
Isn't the DEVICE, the solenoids?
jaywoo
02-28-2004, 03:40 PM
The diagram. Just wire it exactly like this and you won't have any problems.
http://www.fototime.com/8CBFB3D660E1657/standard.jpg
317indy
02-28-2004, 06:40 PM
even if you have a fpss, and a HARLAN window switch?
jaywoo
02-28-2004, 07:01 PM
Just like before, put the FPSS in the spot where the yellow wire from the window shitch meets the white wire from the NX relay. When you have good fuel pressure, the FPSS will allow continuity (ie, you will have a ground that will enable the system). When your fuel pressure is too low, the FPSS will disable continuity, thus no ground and no spray.
As for the Harlan, I'm not sure, since I don't have one and don't know for certain how it's wired.
GOT SPD
02-28-2004, 07:10 PM
Originally posted by jaywoo
Just like before, put the FPSS in the spot where the yellow wire from the window shitch meets the white wire from the NX relay. When you have good fuel pressure, the FPSS will allow continuity (ie, you will have a ground that will enable the system). When your fuel pressure is too low, the FPSS will disable continuity, thus no ground and no spray.
As for the Harlan, I'm not sure, since I don't have one and don't know for certain how it's wired.
The Harlan switch follows the same diagram. What are you guys still not understanding?
OK. I went and connected the yellow wire to the solenoid ground. Before when the solenoid ground was grounded to the chassis with the ignition on(car not running) and the system armed I could hear the solenoid click when I pressed the WOT switch. Now with the yellow wire connected to the solenoid ground wire it doesn't do this anymore. This is telling me it's not grounded. Now when the RPM's reach 3000 with the car running it should ground. That's the purpose of the window switch.
The reason I don't want to connect it to the FPSS or WOT switch is that it was already wired up. I've got over 100 feet of wire running already with the remote bottle opener, bottle heater, and so on. I don't want to figure out where this wire and that wire go. This seems much simpler to me.
BTW, I haven't tried spraying yet up here in Minnesota.
F*ck, now my NX bottle opener isn't working.
Aaahhhhhgg, there's to many wires. I'm pulling my hair out.
jaywoo
02-29-2004, 12:01 AM
You don't hook the yellow wire to the solinoid ground. Just follow the diagram above.
Originally posted by jaywoo
You don't hook the yellow wire to the solinoid ground. Just follow the diagram above.
I have the NOS relay. On the diagram posted it has a black wire going to the battery. My NOS doesn't do this. Also my NOS doesn't have a white wire on my relay for the yellow wire to connect to. So this diagram doesn't help me much.
This is how I have it wired. The yellow wire out of the window switch connects to one side of the FPSS. The other side of the FPSS is hooked to a ground on one of the solenoids. The other solenoid is grounded to the chassis.
With the cars ignition on accesory, and the system armed, when I press the WOT switch it still clicks.
Anyone got the number for NOS?
Blk01SS
03-15-2004, 10:52 PM
wiring for nos 5177 (http://68.78.14.87/NOS%20INSTALL%20GUIDE.jpg)
that should help you out.
your not understanding, you NEED to connect it to the relay, not the noids.
the switch is rated for 1/2 amp
your solenoids draw 7-22 dependingon the setup.
you will burn up your window switch connecting it direct to the noids.
you just find the ground wire going to your relay, and connect the yellow wire in its place. if there are other switches between the relay, and ground, follow it until you finally get to the ground, and put the window switch there
Ryan.
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