MTX-L Ground/12V Noise PSA
#23
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Schematics are here Megasquirt 3 - V3.0 board schematics
Don't think the PCB layouts are available though
Don't think the PCB layouts are available though
#24
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I installed ABS and COPS on my car a couple of weeks ago and in the process rewired my entire engine harness. I never had AFR noise before but I decided to rewire the MTX-L as well. I can't remember how it was connected before but I moved 12V and GND to the MS.
This was the result
10x zoom:
![](https://www.miataturbo.net/attachments/megasquirt-18/75670-mtx-l-ground-12v-noise-psa-afr%2520before.png?dateline=1367695822)
This was the result
10x zoom:
![](https://www.miataturbo.net/attachments/megasquirt-18/75670-mtx-l-ground-12v-noise-psa-afr%2520before.png?dateline=1367695822)
I'll be honest, that looks normal to me. Maybe I need to re-think my wiring strategy. I've always wired everything to appropriate sections on the MS sub harness.
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