JaguarJay

Hello everyone! For all that do not know me (which will me most of you probably) I'm currently rebuilding/reshelling my car. My DIYPNP has served me well the last six months and before my car is in working order again I would like to make some adjustments to the DIYPNP and the car's wiring loom while everything is easily accessible. I already asked this in my build thread but since that's been some days without replies the thread is probably lost within the ongoing stream of build threads.

I ran into some 'issues' (obvioulsy, why would I ask for help otherwise) so I need some help wiring the things in, the last two pictures are my take on the 'problems'..
I mainly need help with the EBC wiring, since that's the most "crucial" of these things :P Car would work fine without these things but it wouldn't get anywhere near 200whp on this wastegate without some form of boost control. I want EBC since that's the fanciest :') (Also the DIYAutoTune EBC solenoid is about as cheap as the manual boost controllers)

Before anyone shoots me, I tried to find some information, but I couldn't really find anything useful. I thought I hit the jackpot with the EBC sticky, but that only seemed to relate to the software side of things.

The front of my DIYPNP, just for reference

The back of the DIYPNP, again, just for reference
My incredible artwork, I need help wiring some things

Okay so the picture is way too big on my screen, but oh well. I've been searching on the interwebz for info about this but I can't find that much information that I understand. I found this thing on DIYAutoTune.com (https://www.diyautotune.com/support/...s-and-outputs/) from which I was able to pull some information.

I'd really like a physical switch which I can use to change fuel/spark maps, something like a "Sport button". (despite the an mx5 pretty much always being in "Sport mode" when the engine is on) But I might get something like an exhaust butterfly valve in the future, apart from that I'd like to artificially create some pops in the overrun, but I want to be able to turn them off as well without diving into the software and changing the fuel/ignition table. This seemed like a really cool way to do that in my opinion. Also I could get it tuned and let it switch between more/less aggressive spark maps. According to DIYAutoTune that's would be possible with "table switching", but I don't know if it'll work the way I have drawn it.

I also want to get the EBC solenoid from DIYAutoTune but I have no idea on how to wire it. My thoughts were something using the DB15 but I have no idea what.

Also need help for this wiring :')

Last but not least, since the MX-5 does not have the starter interlock "Clutch Switch" like the Miata has (mine doesn't have one), I want to come up with my own switch system thingy, which I also want to be able to turn off using a regular switch on the dashboard. As far as I understand it'd work pretty much the same as the table switching switch, so this would be my take on that. I'd remove the Input 2 IN > 1V and wire something like displayed in my beautifully created drawing.

Any help would be greatly appreciated!

Braineack

iTrader: (62)

everything looks correct, just add PA0 to BOOST IN.

JaguarJay

Oh okay, thanks! I'm kind of surprised to hear that, it seems that I don't trust myself enought then :P
I suppose the EBC solenoid has one signal wire that comes from the Boost control OUT > DB15 plug > EBC and one ground wire that just has to be grounded to the chassis or engine or something?

Braineack

iTrader: (62)

the output from the ms is a ground. you power the other side of the solenoid.

JaguarJay

Hmmm okay.. So just to get this straight, the MS side that's connected to the solenoid is grounding the signal, and the solenoid needs to recieve power from a random 12V power source in the car?
If I understand it correctly the wiring would look something like this (please don't mind my incredible artwork)



P.S. If anyone can tell me how to resize the pictures so they only become this big when you click them that'd be greatly appreciated as well

Braineack

iTrader: (62)

correct.

in MS paint you can see the image size:



and resize before uploading to web. I resized the above to 800px.

JaguarJay

Okay cheers! I appreciate the feedback, gonna fire up the soldering iron tomorrow!