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Engine Kill Switch

When it comes to electronics, I’m not very skilled, so I hope that someone out here can give me some guidance. I’ve installed the Cartek GT Solid State Battery Isolator.

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Old 01-18-2021, 08:56 PM   #1 (permalink)
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Default Engine Kill Switch

When it comes to electronics, I’m not very skilled, so I hope that someone out here can give me some guidance. I’ve installed the Cartek GT Solid State Battery Isolator. The battery kill was simple, but I cannot figure out how to wire the engine kill. See pic below from the instructions which describes sending power to the ignition or ECU directly from the Cartek unit. I’ve looked at wiring diagrams and cannot figure out the best location to tap into the ignition or ECU power supply on my 2013 370Z. I also worry about keeping any fuses or relays in line so I don’t run into issues there. Any thoughts are greatly appreciated. Thank you!!
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Old 01-19-2021, 12:00 AM   #2 (permalink)
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Originally Posted by Wigjiggy View Post
When it comes to electronics, I’m not very skilled, so I hope that someone out here can give me some guidance. I’ve installed the Cartek GT Solid State Battery Isolator. The battery kill was simple, but I cannot figure out how to wire the engine kill. See pic below from the instructions which describes sending power to the ignition or ECU directly from the Cartek unit. I’ve looked at wiring diagrams and cannot figure out the best location to tap into the ignition or ECU power supply on my 2013 370Z. I also worry about keeping any fuses or relays in line so I don’t run into issues there. Any thoughts are greatly appreciated. Thank you!!
Should be able to kill the engine through Ecu tek.
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Old 01-19-2021, 04:03 PM   #3 (permalink)
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I have this kit on my rsx, unfortunately, I didn't take the risk to install it myself and hired a pro, after looking into the manual, it says you need to find ECU or IGN fuse to use it, I found a diagram for 370z fuse box but IGN marked as 50A which will not work, as the limit is 40A, tried to get a better diagram with no luck (as my car isn't here at home)

https://www.cartekmotorsport.com/wp/...STRUCTIONS.pdf
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Old 01-19-2021, 04:43 PM   #4 (permalink)
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https://www.justanswer.com/nissan/7r...rter-kill.html

i dunno maybe this will help sounds like it's a pain in the *** to wiring into the ignition relay pin.

what are you trying to do with this kill switch anyway? Is this for a race use? Could you maybe cut power to the fuel pump and stall the engine instead. That might be easier to wire.
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Old 01-19-2021, 10:32 PM   #5 (permalink)
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Originally Posted by SeeThruHead View Post
https://www.justanswer.com/nissan/7r...rter-kill.html

i dunno maybe this will help sounds like it's a pain in the *** to wiring into the ignition relay pin.

what are you trying to do with this kill switch anyway? Is this for a race use? Could you maybe cut power to the fuel pump and stall the engine instead. That might be easier to wire.
Thank you. I didn’t know that sited exists. Looks promising. Yes, ST3 race build in process.
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Old 01-19-2021, 10:36 PM   #6 (permalink)
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Originally Posted by AlWakRa View Post
I have this kit on my rsx, unfortunately, I didn't take the risk to install it myself and hired a pro, after looking into the manual, it says you need to find ECU or IGN fuse to use it, I found a diagram for 370z fuse box but IGN marked as 50A which will not work, as the limit is 40A, tried to get a better diagram with no luck (as my car isn't here at home)

https://www.cartekmotorsport.com/wp/...STRUCTIONS.pdf
Thank you. Looks like I’ll need to get a pro to do this one so I don’t damage the unit or the car.
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Old 01-20-2021, 11:16 AM   #7 (permalink)
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http://www.youtube.com/watch?v=lMpTT-f72g0

I think yours works basically the same way as this thing.

The device should cut power to the ecu before isolating the battery.
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Old 01-20-2021, 11:23 AM   #8 (permalink)
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Originally Posted by Elmo370z View Post
Should be able to kill the engine through Ecu tek.
and it's probably a much easier method of doing so
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Old 01-20-2021, 12:56 PM   #9 (permalink)
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and it's probably a much easier method of doing so
So for a racing application, where you need both internal and external kill switches. In case of fire / you are incapacitated / you have a crash. Can you hook up a physical button on your dash / exterior panel to kill the engine via ecutek? If it's not easy to kill in a panic then it's not really very useful IMO (for this application)
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Old 01-20-2021, 01:28 PM   #10 (permalink)
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Quote:
Originally Posted by SeeThruHead View Post
http://www.youtube.com/watch?v=lMpTT-f72g0

I think yours works basically the same way as this thing.

The device should cut power to the ecu before isolating the battery.
Excellent video. Helps a lot. Thank you!
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Old 01-21-2021, 12:45 AM   #11 (permalink)
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Excellent video. Helps a lot. Thank you!
https://youtu.be/12jMvNNlGpM

Custom maps, sure things have advanced since the making of this video. I would recommend coughing up the money for a stand alone. If you’re strictly racing the car an emtron kv16 with a pdm would highly benefit in what you’re trying to do. You could add sensors to your suspension, professional awesome has inexpensive tire temp sensors and if you a digital dash you could log you laps and go over the data to see where you can pick up time.
Just an idea instead of adding a bunch of other stand-alone devices to the car, just more things to monitor, more things to go wrong, and at the end of the day you spent just as much money as a stand-alone and pdm, plus there downtime figuring out how to get all this to work with the factory ecu.
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Old 01-21-2021, 08:58 AM   #12 (permalink)
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Quote:
Originally Posted by Elmo370z View Post
https://youtu.be/12jMvNNlGpM

Custom maps, sure things have advanced since the making of this video. I would recommend coughing up the money for a stand alone. If you’re strictly racing the car an emtron kv16 with a pdm would highly benefit in what you’re trying to do. You could add sensors to your suspension, professional awesome has inexpensive tire temp sensors and if you a digital dash you could log you laps and go over the data to see where you can pick up time.
Just an idea instead of adding a bunch of other stand-alone devices to the car, just more things to monitor, more things to go wrong, and at the end of the day you spent just as much money as a stand-alone and pdm, plus there downtime figuring out how to get all this to work with the factory ecu.
Guy just wants a battery isolator lol. Recommending he swap his ECU and use a PDM (that's like minimum $5k? and since there are no plug and play harness a lot of time wiring) Seems excessive Also pretty sure aftermarket PDM need to be connected to the battery via an isolator anyway? At least that's what the MOTEC PDM30 manual says
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Old 01-21-2021, 10:04 AM   #13 (permalink)
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Guy just wants a battery isolator lol. Recommending he swap his ECU and use a PDM (that's like minimum $5k? and since there are no plug and play harness a lot of time wiring) Seems excessive Also pretty sure aftermarket PDM need to be connected to the battery via an isolator anyway? At least that's what the MOTEC PDM30 manual says
It is a race car, he strictly is building to race and be competitive. You select a pdm based on your electrical need and/or things you want to monitor. Data is what can make you fast on the track. It’s a valuable tool that can gain that extra 2-3 tenths. Simplifying the electrical system, takes weight out the car, dont have to worry about fuses and relays anymore, and the processor of the stand-alone is so much faster. Plus whatever you want to do and monitor can be done, your only limitations is your imagination. Excessive, I don’t quite understand where you’re coming from? To someone who who has no or little background in racing it might seem expensive, but that same person will spend 4K on wheels and tires, 6-10k on forced inductions, and 3k on a wrap job, but complain spending 6-8k on great coils, 3k on a diff, and/or 4K on seat time, tires, etc... . Would you also say him spending $3,100 on the mk60 abs system to prevent ice is a tad bit excessive and the amount of time he is going to have to spend to work out the kinks?
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Old 01-21-2021, 10:15 AM   #14 (permalink)
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Yeah I meant in the context of this thread and the OP's question.
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Old 01-21-2021, 10:36 AM   #15 (permalink)
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It seems to me that Elmo was just giving him some thoughts based on the context of the build goals

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Any thoughts are greatly appreciated. Thank you!!
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