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Timing tuner with separate window switch wiring

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Old Oct 8, 2014 | 10:41 AM
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Have a timing tuner I'm installing on my ls1, the white wire is in with the wot and arming switch, and the gray is suppose to go to the negative side of the n2p relay. I have a picture included of how the nitrous is wired now. My window switch is supplying the ground for the relay. Can I attach the gray wire of the timing tuner to the wire supplying the ground (window switch to relay)? I only want to use the timing retard from the timing tuner.
Attached Thumbnails Timing tuner with separate window switch wiring-image-1372207386.jpg  
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Old Oct 8, 2014 | 10:45 AM
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Or is it as simple as adding the gray wire in place of the negative on the relay to get the timing tuners window switch to work?
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Old Oct 8, 2014 | 11:54 AM
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Which timing retard do you have? Do you have any diagrams for it? The picture you linked is just a basic nitrous wiring diagram.

I believe you are just going to take that grey wire straight to the white wire on the relay. (85 Pin/Ground).

If you can post a diagram I will look farther into it.

Thanks,
Garrett
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Old Oct 8, 2014 | 12:25 PM
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I have the 'hp in a box' I connected the gray to the 85 pin on the relay and the white in line with the wot and arming switch going to the 86 pin. The crank sensor T is connected and I set 4 degrees of rtd, with a window from 3-6k rpm. The green light shows when the car is running. My car has 26 degrees of timing on the tune so I took out 4 degrees for a 75 shot. Tested it for the first time and got what sounded like a backfire from the intake as soon as the nitrous was suppose to hit. The other window switch is already removed.

This is the diagram for the timing tuner
Attached Thumbnails Timing tuner with separate window switch wiring-image-1759469307.jpg  
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Old Oct 8, 2014 | 01:07 PM
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Originally Posted by Y87bird00
I have the 'hp in a box' I connected the gray to the 85 pin on the relay and the white in line with the wot and arming switch going to the 86 pin. The crank sensor T is connected and I set 4 degrees of rtd, with a window from 3-6k rpm. The green light shows when the car is running. My car has 26 degrees of timing on the tune so I took out 4 degrees for a 75 shot. Tested it for the first time and got what sounded like a backfire from the intake as soon as the nitrous was suppose to hit. The other window switch is already removed.

This is the diagram for the timing tuner
Okay so the gray wire goes straight to the 85 pin on the relay. It grounds through the box itself, kinda like a regular window switch works.

The white wire ties into the 86 pin on the nitrous relay, between the relay and the microswitch. (As you mentioned.)

I would run through the wiring, it sounds like you have everything wired correctly..just double check your connections themselves. Was the nitrous system working correctly before you installed the box?

-Garrett

Last edited by NitrousExpress; Oct 8, 2014 at 01:13 PM.
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Old Oct 8, 2014 | 01:16 PM
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Thank you. I've never sprayed the nitrous before because I wanted to pull timing first.

If I pull the fuse to the relay (solenoids won't spray) will the timing tuner still pull timing? I want to ensure it pulls timing, I set it to -15 degrees so I can feel it.
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Old Oct 8, 2014 | 04:13 PM
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Yes, even with that fuse pulled it it should still put power into the box because the power is coming from the arming switch.

-Garrett
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