ABS Swap Wiring Questions
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SADFab Destructive Testing Engineer
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Questions for those of you who have done an ABS swap.
Here is my wiring spreadsheet
![](https://www.miataturbo.net/attachments/build-threads-57/164625-aidans-loose-oily-bunghole-actually-runs-track-lap-80-yxug2ye_dab3fef51ef68a97bfd81a46b1a2570988bde66a.png?dateline=1457239099)
Questions:
Diagnostic wires: Should I just leave these accessible for later when I need to ground them?
Power wires: Can I run all of these to the always hot terminal under the fusebox? Or is that too much power for that wire to carry? Run something from the battery?
Lights: Don't really want to deal with my cluster, so I plan on running wires for a couple LEDs. with an inline resistor to make it seem like a bulb.
I remember codrus talking about one of the sensor wires being a "ground side"? Need to see which one of the wires I need to connect to my VSS input on the megasquirt.
Otherwise this wiring doesn't look to bad really. Some power wires, 3 wires over to the drivers side for lights and brake switch, and the sensors.
Anyone want to take bets on how many leaks I have? First time flaring brake line and I have a total of 9 new flares.
I'm guessing 3, Yank says 2.
![](https://www.miataturbo.net/attachments/suspension-brakes-drivetrain-49/164626-abs-swap-wiring-questions-pjl07iw.jpg?dateline=1457239217)
![](https://www.miataturbo.net/attachments/suspension-brakes-drivetrain-49/164627-abs-swap-wiring-questions-cjna7bs.jpg?dateline=1457239217)
Here is my wiring spreadsheet
![](https://www.miataturbo.net/attachments/build-threads-57/164625-aidans-loose-oily-bunghole-actually-runs-track-lap-80-yxug2ye_dab3fef51ef68a97bfd81a46b1a2570988bde66a.png?dateline=1457239099)
Questions:
Diagnostic wires: Should I just leave these accessible for later when I need to ground them?
Power wires: Can I run all of these to the always hot terminal under the fusebox? Or is that too much power for that wire to carry? Run something from the battery?
Lights: Don't really want to deal with my cluster, so I plan on running wires for a couple LEDs. with an inline resistor to make it seem like a bulb.
I remember codrus talking about one of the sensor wires being a "ground side"? Need to see which one of the wires I need to connect to my VSS input on the megasquirt.
Otherwise this wiring doesn't look to bad really. Some power wires, 3 wires over to the drivers side for lights and brake switch, and the sensors.
Anyone want to take bets on how many leaks I have? First time flaring brake line and I have a total of 9 new flares.
I'm guessing 3, Yank says 2.
![](https://www.miataturbo.net/attachments/suspension-brakes-drivetrain-49/164626-abs-swap-wiring-questions-pjl07iw.jpg?dateline=1457239217)
![](https://www.miataturbo.net/attachments/suspension-brakes-drivetrain-49/164627-abs-swap-wiring-questions-cjna7bs.jpg?dateline=1457239217)
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