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-   -   Older MS3 basic wiring pinout? (https://www.miataturbo.net/megasquirt-18/older-ms3-basic-wiring-pinout-95667/)

vteckiller2000 01-06-2018 08:26 PM
Older MS3 basic wiring pinout?
 
I purchased a used older ms3 basic for my nb1, and it is in the old style case with two db37 connectors and a "bob" to connect to the car. I am trying to figure out the wiring for the aux harness.It only has:yellowtwisted together white and pinktwisted green and brownorangegreygreenred
I know the yellow should be wideband, but I cannot figure out which wires power and ground the wideband and which wire I can use to control my vvt solenoid (I have swapped my BP4w for a vvt engine).

Anyone have a wiring pinout for this?https://cimg7.ibsrv.net/gimg/www.mia...3549d1ee0a.jpg
https://cimg8.ibsrv.net/gimg/www.mia...881a34ba78.jpg

Reverant 01-07-2018 04:43 AM
https://cimg7.ibsrv.net/gimg/www.mia...90c95aa61e.png

hi_im_sean 01-07-2018 09:07 AM
http://www.msextra.com/doc/pdf/MS3XV30_Hardware-1.4.pdf

that should be everything you ever wanted. pg 18 has the sheet rev posted above

vteckiller2000 01-07-2018 10:30 AM
Your two diagrams have some inconsistencies. For instance the VVT is listed as pin 36 on the top (MS3 plug) in Rev's table, but as pin 27 on the same plug on the msextra document. I am guessing firmware differences and Dimitris' is correct? I do not have any wires for several of those outputs, so I am assuming I need to solder some to the pins? I am not very good at soldering, so I usually pay people to do it right for me :)

hi_im_sean 01-07-2018 10:54 AM
I guess it depends one whether you have a Rev unit or a DIY? whats the daughter board say?

vteckiller2000 01-07-2018 11:32 AM
Originally Posted by hi_im_sean (Post 1460397)
I guess it depends one whether you have a Rev unit or a DIY? whats the daughter board say?
Rev's unit. I'll just use one of my holiday gift cards to get a new soldering station and add the wire.

Reverant 01-07-2018 01:44 PM
The MS3 from us has a different expander board, so only use the pinout I posted above.

vteckiller2000 01-07-2018 02:41 PM
Originally Posted by Reverant (Post 1460449)
The MS3 from us has a different expander board, so only use the pinout I posted above.
Awesome, thanks a bunch! Do you have a basemap for that unit? The car it came out of has some weird coils and injectors. I suppose I can check differences from that to my nb2 basemap if it comes to it.

Also, is there no power and ground for the wideband on this?

vteckiller2000 01-19-2018 08:09 PM
About to load the tune and try to fire it. What do I need to alter to enable vvt in the settings? Do I need to set an output for vvt?

Akina_Downhill 01-20-2018 06:36 AM
You need to wire the vvt solenoid(12V+Ground that is controlled via MS3), the port you will use is PP6 according to Reverant's diagram posted above.
You will need to configure the VVT Settings in Tunerstudio, plus dial in a VVT Intake cam table.

vteckiller2000 01-20-2018 11:01 AM
Originally Posted by Akina_Downhill (Post 1462591)
You need to wire the vvt solenoid(12V+Ground that is controlled via MS3), the port you will use is PP6 according to Reverant's diagram posted above.
You will need to configure the VVT Settings in Tunerstudio, plus dial in a VVT Intake cam table.
The solenoid is wired and the car runs, is it as simple as turning vvt on in TS?

Braineack 01-20-2018 11:05 AM
yes, then tuning it.

vteckiller2000 01-20-2018 12:39 PM
Originally Posted by Braineack (Post 1462612)
yes, then tuning it.
Shit I can handle that. I thought there were some weird I/O stuff I needed to do. Thanks!


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