ISO Nitrous wiring diagram 2-Step interrupt++
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From: South Alabama
ISO Nitrous wiring diagram 2-Step interrupt++ I'm sure this has been covered multiple times, but I have tried to find a diagram and failed. My goal is for the nitrous to be armed but not activated while the 2-step is activated at WOT, then when
I let off the clutch 2-step deactivates and nitrous activates. If anyone could point me in the right direction, that would be appreciated.
The Nitrous wiring diagram I'm looking for would be:
1. LNC-2000 wired to clutch switch (for 2-step and timing retard)
2. WinMax TPS and RPM Activated Nitrous Window Switch
3. Nitrous solenoid
4. Fuel solenoid
5. FPSS
6. Bottle heater
7. Purge
8. Arming switch
9. Microswitch
I let off the clutch 2-step deactivates and nitrous activates. If anyone could point me in the right direction, that would be appreciated.
The Nitrous wiring diagram I'm looking for would be:
1. LNC-2000 wired to clutch switch (for 2-step and timing retard)
2. WinMax TPS and RPM Activated Nitrous Window Switch
3. Nitrous solenoid
4. Fuel solenoid
5. FPSS
6. Bottle heater
7. Purge
8. Arming switch
9. Microswitch
Thread Starter
Teching In
Joined: Jun 2022
Posts: 32
Likes: 8
From: South Alabama
Thread Starter
Teching In
Joined: Jun 2022
Posts: 32
Likes: 8
From: South Alabama
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Thread Starter
Teching In
Joined: Jun 2022
Posts: 32
Likes: 8
From: South Alabama
This is my drawing. I can explain it since it may be hard to read. I’ll go out and take pictures of how it’s wired to the clutch pedal also. So basically I already had the relay for the LNC-2000 that was installed on the car previously to my nitrous. The two relays you see in this drawing are two additional ones. Basically when the “2-step” relay sees power it cuts the power from the initial nitrous relay.
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Verdad Gallardo This is my drawing. I can explain it since it may be hard to read. I’ll go out and take pictures of how it’s wired to the clutch pedal also. So basically I already had the relay for the LNC-2000 that was installed on the car previously to my nitrous. The two relays you see in this drawing are two additional ones. Basically when the “2-step” relay sees power it cuts the power from the initial nitrous relay.
Thread Starter
Teching In
Joined: Jun 2022
Posts: 32
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From: South Alabama
Wiring
Red wire on purple clutch switch wire goes to 12v switched power
red wire on green clutch switch wire goes to LNC-2000
Blue wire on clutch switch green wire goes to
2 step relay 85 and goes to nitrous relay one 85
2-step relay 86 ground
Nitrous relay one 86 goes to ground (or in my case FPSS)
Nitrous relay one 87 not used
Nitrous relay one 87a arming switch
Nitrous relay one 30 goes to nitrous relay 2 85
Nitrous relay two 30 goes to 12v switched power
Nitrous relay two 86 nitrous controller/ switch
Nitrous relay two 87a not used
Nitrous relay two 87 solenoid power
Edit: hopefully this helps. I followed LNC-2000 instructions for wiring the clutch switch to the two step relay then just added all the nitrous stuff later. It won’t help to show my relays because it’s just a mess of wires lol.
Last edited by Dbosarge16; Dec 8, 2025 at 05:56 AM.
Wiring
Red wire on purple clutch switch wire goes to 12v switched power
red wire on green clutch switch wire goes to LNC-2000
Blue wire on clutch switch green wire goes to
2 step relay 85 and goes to nitrous relay one 85
2-step relay 86 wire goes to 86 relay one
Nitrous relay one 87 not used
Nitrous relay one 87a arming switch
Nitrous relay one 80 goes to nitrous relay 2 85
Nitrous relay two 30 goes to 12v switched power
Nitrous relay two 86 nitrous controller/ switch
Nitrous relay two 87a not used
Nitrous relay two 87 solenoid power
Edit: hopefully this helps. I followed LNC-2000 instructions for wiring the clutch switch to the two step relay then just added all the nitrous stuff later. It won’t help to show my relays because it’s just a mess of wires lol.
Thread Starter
Teching In
Joined: Jun 2022
Posts: 32
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From: South Alabama
i basically copied this diagram just instead of the button you replace that with the clutch switch 2-step relay. Also I corrected my wiring write up. For clutch relay 86 and nitrous one relay 86. And corrected one of the relay numbers.
Last edited by Dbosarge16; Dec 8, 2025 at 06:00 AM.
when u say nitrous relay one and 2, is relay 1 the one under dash and relay 2 is the one under hood working the solenoids
Thread Starter
Teching In
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From: South Alabama
the location of your solenoids is all up to you. All of mine except the clutch relay are in the glove box. In the diagram I last sent “Relay 2” would be the one at the bottom sending power to the solenoids when the controller tells it too. Relay one basically exist in order to alternate what the button or in our case clutch triggered 2 step relay is doing. So clutch relay on nitrous one relay off etc
Wiring
Red wire on purple clutch switch wire goes to 12v switched power
red wire on green clutch switch wire goes to LNC-2000
Blue wire on clutch switch green wire goes to
2 step relay 85 and goes to nitrous relay one 85
2-step relay 86 ground
Nitrous relay one 86 goes to ground (or in my case FPSS)
Nitrous relay one 87 not used
Nitrous relay one 87a arming switch
Nitrous relay one 30 goes to nitrous relay 2 85
Nitrous relay two 30 goes to 12v switched power
Nitrous relay two 86 nitrous controller/ switch
Nitrous relay two 87a not used
Nitrous relay two 87 solenoid power
Edit: hopefully this helps. I followed LNC-2000 instructions for wiring the clutch switch to the two step relay then just added all the nitrous stuff later. It won’t help to show my relays because it’s just a mess of wires lol.
When u say Nitrous relay one 87a arming switch, by arming switch is that 12v key on?
