I am not sure which coil wire to tap with the NOS window switch. The switch says to tap the ground wire coming off the coil, but other switches tap the wire 3rd wire that is striped and cream color so I am wondering if anyone knew whch it was.

Thanks

 

I can't speak for NOS window switches, but my Harlan taps into the signal wire (which is the "other" wire). If the NOS window switch says to tap the ground, tap the ground. The 3 wires at the coil will be red, black, other (the wires may have stripes too).
-hype

 

Well I tried both wires and neither worked.

I have no clue what to do. I am getting pretty frustrated.

 

Alright, have been looking through my wiring trying to find the problem.

The RPM switch atached to the ground on the relay, but I also atached the groung from the solenoids to this. Should I groung the solenoids seperately? Or does this make no difference?

 

I don't know which kit you have, but this is the wiring diagram I got from ejj for a Harlan Window Switch



I don't know if it's totally correct, but it's pretty close. My window switch has a +12V, ground, tach signal input, and an output. I'll ask Eric later and let you know.
-hype

 

Yeah, um, that diagram could work, but its much more complicated than it needs to be. That's not what I did. Hype's going to create a new one later.

 

Here's the thread where I had to have it all explained to me:

http://forums.maxima.org/showthread....+switch+ground

If you're having problems with connecting the NOS window switch to the coils, PM SprintMax...I'm pretty sure he has a NOS window switch.

 

Here's an updated diagram which shows the easiest way to wire the window switch.



The relay will only activate when both the WOT AND Rpm Switch are on. This also saves you from cutting extra wires.
-hype

 

This assumes that the window switch supplies power. But the instructions with the NOS switch show that the output wire is suppose to go to the green (ground wire on the relay).

By the way I am super frustrated

 

I talked NOS Tech and they said that for the NOS switch the signal wire goes to the ground on the coil and the output goes to the green ground wire from the relay which should not be grounded. So I have no clue what is wrong now.

 

Actually (I believe) that's assuming the window switch is supplying ground (which is green). The relay has several connectors

Red - +12v in from arming switch
Green - Ground from WOT switch (which is only passing on the ground when activated)
Blue - +12v out to solenoids
Orange - +12v in from battery

When everything is activated the +12 from the arming switch and ground (via the WOT switch and window switch) create a potential difference which activates the relay. This causes current to flow from the battery to the solenoids.

That's the way I understand it I wish this relay had a diagram on it so I could tell which numbers correspond with each color.
-hype

 

That's exactly how mine is wired. However, you mispoke: The relay will only activate when the FPSS, RPM switch AND WOT switch are on.

 

No actually I didn't The relay will only activate when the arming switch and WOT switch are activated.

However, the solenoid will only activate when the relay AND FPSS are activated.

BTW I just checked the WOT switch, and all it does is pass on a ground when the switch is triggered.
-hype

 

Actcually, you did....

The relay will activate when the following THREE conditions are true:

-Acticvation switch is on
-Window Switch is on (within its range)
-WOT switch is on.

Like you just mentioned, the FPSS only controls the second solenoid, which quite honestly I didn't use and just grounded so only the main relay would control the 2nd solenoid.

 

Ok you got me At least we have the system figured out. For thoroughness here's a link to find out which terminals on the relay correspond to which colors.

http://www.partsexpress.com/resources/relays.html



On the NOS (Hella) relay the colors/numbers are
30 Orange: +12v in from battery
85 Red: +12v in from the arming switch
86 Green: Ground from WOT/Window Switch
87 Blue: +12v out to solenoids
87a N/A (no wire on this relay)

If you really want to be technical you can switch the red/green wires and it won't make a difference. As long as one is +12v and the other is ground.
-hype

 

I have mine hooked up exactly like that but it doesn't work.

Is there anyway to test the RPM switch to see if it is working?

 

Anybody? Does it make a sound or something?

 

I tried bypassing the window switch and it still doesn't work.

I have no clue what the problem is now.

 

I've never used/seen a NOS window switch, so I can't really help you. The Harlan Window switch has a LED that lights up when it activates.
-hype

 

I am not really sure its the switch since the kit didn't work when I bypassed it. Both solenoid seem to work so I am stumped.

 

You have NOS kit right? I can try to help you troubleshoot if you like. Do you have AIM?
-hype

 

I don't have AIM (I use to but I never got anything done) The thing is that It was an NOS kit that I converted into an NX kit.

Both solenoids click when given power. The is power coming from the Ariming switch and continuity when the wot switch is activated and there appears to be continuity across the relay.