Proteus Plug and Play board for Miata/MX5 NB2 (72 pins)
Posted: Sun Apr 12, 2020 10:00 pm
by Crazy Striker
Hi folks !
I'm here to present you my first creation (at least the first one I developped from scratch) which is a 72 pins PnP adapter for the Proteus board for 2001-2005 Mazda Miata (or MX5).
It's equipped with the stock connector and can be equipped with two ampseal 23 pins connectors for extra features.
Basic features like MAP/AFR input are available through the unused pins on the OEM connector (9 of them).
There are leds to monitor state of :
4x Injectors
4x ignition outputs (2 OEM + 2 extended for full sequential)
Fan
Fuel pump
MAin relay
MIL/CEL
VVT
IAC
Alternator control
Tachometer
Two flyback diodes are present for IAC and VVT (even if not really needed for proteus V0.3)
The proteus board needs to be rev3.0 because some pins moved between 2.0 and 3.0.
Boards are not yet produced but as soon as proteus v0.3 is released i'll order them with some proteus assembled boards, and test them on my own NB2 miata.
Re: Proteus Plug and Play board for Miata/MX5 NB2 (72 pins)
Posted: Sun Apr 12, 2020 10:17 pm
by AndreyB
Github or not?
Re: Proteus Plug and Play board for Miata/MX5 NB2 (72 pins)
Posted: Tue Apr 14, 2020 9:48 am
by Crazy Striker
Yes you're in now. Was too busy melting my GPU with raytracing 3D views
Re: Proteus Plug and Play board for Miata/MX5 NB2 (72 pins)
Posted: Thu Jun 25, 2020 10:23 am
by Crazy Striker
Hi ! So big update on the board, as I received my Proteus last week I was able to solder one of them to the PnP adapter, using sawed off AMPSEAL connectors. This solution is far from ideal in terms of costs be we're still looking for cheaper alternatives.
The board has been plugged into the car and works well with a minor power supply adjustment (my 2004 miata has ECU power coming from main relay), only issue now is tuning and especially ensuring the timing is correct.
Here is a short video of engine running not so well but still running :
Gwendal
Re: Proteus Plug and Play board for Miata/MX5 NB2 (72 pins)
I am interested because I plan to wire a Proteus to my NB2 to run some knock tests. I think it would be best for me to repeat your pinout and build your tune into rusEFI firmware.
Re: Proteus Plug and Play board for Miata/MX5 NB2 (72 pins)
Posted: Tue Dec 15, 2020 3:49 pm
by deezums
Do you know where to get more 72 pin connectors, or are you just stealing them off ECUs? Far as I can tell the 72 pin connector is out of stock everywhere and I'm not sure if more are being made without a 2500 piece order.
Here's what I've found. The missing connector housings are available, kinda, overseas only.
Re: Proteus Plug and Play board for Miata/MX5 NB2 (72 pins)
Posted: Wed Dec 16, 2020 6:45 pm
by Crazy Striker
Hi all !
Sorry if I didn't reply fast enough, was waiting to see if major flaws were present on PnP board before releasing it.
Considering I daily the car since May, I consider the design to be ok for public release so here it is :
Feel free to fork, push and add issues to this repo.
It works as is. It is compatible with V0.3 and V0.4 Proteus.
About connection between Proteus and PnP adapter, best solution is still to hack up ampseal male connectors to expose pins on both sides.
About 72 pins connectors I got them directly from TE website.
About my car current config, I have a stock engine except a few things :
- I'm using a 36-1 Protege trigger wheel instead of stock 4 teeth trigger
- I'm using a 3 bars MAP sensor from Aliexpress. But you can use the OEM "Boost sensor" used for EGR as a MAP sensor. Calibration points are available online or in my tune on the barometric sensor settings.
- I'm using a SLC FREE 2 wideband controller and LSU 4.9. I'll probably switch controller soon depending on success of Matt's adventures.