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-   -   looking for a 12v hot wire on NB (https://www.miataturbo.net/engine-performance-56/looking-12v-hot-wire-nb-47809/)

jeff_man 05-25-2010 11:51 PM

looking for a 12v hot wire on NB
 
was told use fuel plum from the fuse box but that's under the hood and i rather use something under the dash to splice into that's hot when ever the key is in and even when cranking.

edit, yay i posted in the wrong section.

Joe Perez 05-26-2010 12:20 AM

What year? '99-'00 and '01+ are fairly different.

But, the white/red wire is pretty universal. This is the one that comes from the Main Relay and supplies power to the ECU and the critical sensors.

jeff_man 05-26-2010 12:39 AM

99, where do i find this wire?

edit, i have tried a few but so far they all cut power while cranking. i see on really think one going to the starter key but i'm betting by the size of the wire that there is to much power there

BarbyCar 05-26-2010 09:48 AM

If you have power door lock wiring under the dash, the Orange wire is hot at all times. If you don't have locks the wiring is probably still there but you may have to add a fuse in the block marked D'Lock.

The connector has six wires, Orange, black, Red, Blue, Red/Yellow, Blue/Yellow

Joe Perez 05-26-2010 11:19 PM


Originally Posted by jeff_man (Post 578510)
99, where do i find this wire?

It goes to the ECU. Pin 1B. Hot with the key in both Run and Start, cold in ACC and Off.

jeff_man 05-27-2010 03:13 AM


Originally Posted by Joe Perez (Post 579107)
It goes to the ECU. Pin 1B. Hot with the key in both Run and Start, cold in ACC and Off.

DAMN IT, i got tired and just ran a on off switch to a always hot wire... time to pull the dash back out.


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