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Different types of relays?

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Old Nov 23, 2010 | 04:53 PM
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Default Different types of relays?

So I just finished wiring everything up today.
I go to test her out......and nothing.

My fear is I choose the wrong path for some wiring.

I used the below setup but my relay uses green/blue/orange/red rather then the pics green/black/red/dark red





The numerals underneath are the same 87/86/85/30 but I cannot tell what wire they belong to on my relay.

Should I just go buy a relay that uses the above colors or does someone have one similar to mine that can help me coordinate the right wire to the diagram?
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Old Nov 23, 2010 | 04:59 PM
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colors are not as important, going by the numbers on the terminals is the only way to know for sure that you are in the right place. just my 2 cents.
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Old Nov 23, 2010 | 05:01 PM
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Originally Posted by vegaswheelsup
colors are not as important, going by the numbers on the terminals is the only way to know for sure that you are in the right place. just my 2 cents.
my problem is it looks like Spanish where it tries to explain the corresponding numbers/color.

the numbers ore on the side where its hard to tell what color each refers too
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Old Nov 23, 2010 | 05:30 PM
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Chris@NitroDaves
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Pull the relay from the harness and where they connect there should be #'s written there too telling what # pin it is.
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Old Nov 23, 2010 | 06:14 PM
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Originally Posted by Chris@NitroDaves
Pull the relay from the harness and where they connect there should be #'s written there too telling what # pin it is.
I poped it off......no other writing


I "think" i figured it out using http://www.autoshop101.com/forms/hweb2.pdf

page 9
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Old Nov 23, 2010 | 07:40 PM
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get a volt meter and start testing connections before u test it on the streets. better safe than sorry and it will only take a few mins to check everything, and if the relay wiring part is still messed up try comparing it to another relay that has the numbers clearly marked on the bottom(pin side).

Last edited by Go On 3; Nov 23, 2010 at 07:49 PM.
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Old Nov 23, 2010 | 07:48 PM
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so i can minimize potential problem zones, i pulled he nozzle and let it hang.

i tripped the full thot switch and revved to 3k.
can i pull the window switch pill completely for 0rmp activation?

also, is it normal that only 2 prongs on the full thrott switch are used?

im tryin to find where the issue is



thx guys!
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Old Nov 23, 2010 | 11:02 PM
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The standard pin assignment for automotive relays is: 85 and 86 are the coil, and pins 30 and 87 are the relay contacts. The numbers on your diagram are correct - the colors do not matter. Only two pins are needed on the WOT switch but they must be the correct two. The three pins are: 1) common (C), 2) normally-open (NO), and 3) normally-closed (NC). You need to use 1 and 2 (Common and Normally-Open). There are four electrical requirements for spray:

1) Nitrous Armed
2) WOT Switch closed
3) FPSS Switch closed
4) Window Switch

You can bypass the FPSS and the window switch by connecting relay pin 85 to ground. This would allow you to test most of your system with the engine not running.

Good Luck
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Old Nov 23, 2010 | 11:07 PM
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^damn thanx

im almost eager to go freeze and try it right now

so i can ground what i believe i s pin 85 to the chassis and see if it works with he key just turned forward?

Last edited by hugger1975; Nov 24, 2010 at 12:31 AM.
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Old Nov 23, 2010 | 11:59 PM
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ok so i ran to the hugger and did what u said gary......i groundes pin 85.

as soon as i tapped the full throt switch.....BAM, noids workin.


so im guessin that means i gota figure out if its the window or relay
- want to assume it isnt the FPSS cuz it is not installed (ie: pressurized.....i have it grounded. in the pic of my setup, i have the 85 off relay directly connected to yellow of window switch.



update #2

so I just learned i am supposed to put the window switch in 4cyl mode by cutting the red/blue wire???????

Last edited by hugger1975; Nov 24, 2010 at 12:33 AM.
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