Here's the deal. Tactrix has finally implemented the first phase of standalone logging to MicroSD cards using their OpenPort 2.0 adapter. No laptop needed, no PDA needed. Just a PC with a USB port.
This will work on ANY Mitsubishi with a 16-pin diagnostic port and MUT-III logging protocol support. This has NOTHING to do with OBD2. It's pretty much any Mitsu-based car from 1994 until 2007-ish.
(If you've got friends with Subarus, this will work on most of their cars too)
Now, let's get a few things out of the way before the questions start rolling in. PLEASE read this before you dig into the thread.
I have an older OpenPort 1.x adapter.
Good choice in cables, but this thread ONLY applies to the OpenPort 2.0.
I have a 91-93 3S. Does this apply to me?
No. Your car has neither the necessary connector nor the correct logging protocol (Mitsu's prior to 94 had MUT-II logging)
I have a 94-97 3S. What can I do?
You can log your car with this. Keep reading.
I have a 98-99 3S. What can I do?
You can log your car AND you can reflash your ECU. More on that later.
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Ok, now that that's out of the way....here's a quick summary.
Purchase an OpenPort 2 adapter from Tactrix.com
Purchase a compatible Micro SD card from anywhere. Don't waste your time with anything over 2GB. 2GB is enough space to store logs for pretty much the lifetime of your car
Set up a log configuration file on the SD card
Plug the adapter into your car, and it'll automatically connect to the ECU, and when it sees data that match the conditions you set in your config file, it'll start logging data to the card. When the "stop" conditions are met, it'll stop logging.
When you're done, take your OpenPort 2 back to your PC, download the .csv (comma separated values) files into a decent text editor, MS Excel, or your log analysis software of choice.
Tactrix is talking about adding a log analysis interface into their ECUFlash software, but it's only being talked about at this point. It is not even in beta, so don't hold your breath for it.
If you want to see the numbers while you're driving, you'll still need a laptop and a copy of EvoScan ($25)
I've been testing this for a couple weeks on my 94 Stealth TT. It works great, and I don't even have the most recent revision of the software.
Links:
Tactrix:
tactrix
Logging config details:
openecu.org • View topic - Openport Stand-Alone Logging Beta
Oh, and that reflash thing for the 98-99 cars. The OpenPort 2 is currently the ONLY adapter that will allow end-user (IE YOU) to program your own 3000GT. You can COMPLETELY re-write your ECU. But to do that, we need people to get on board with buying the adapters, and CONTRIBUTING to the task of analyzing how the ECU software works so we know exactly what to reprogram.
The DSM guys (as usual) have already done some legwork here. But there's still a lot of 3S specific work that needs to be done. I am not going to do it by myself. I don't even own a 98-99 car.
People need to get involved instead of waiting for someone else to take all the risks and spell everything out in a handy how-to document!
So what are the downsides? There pretty much are none. The only one I can think of off the top of my head is that some of the logging parameters in EvoScan and the Tactrix sample configs are flat out WRONG for older cars like ours. It's very easy to fix them and I have most of the definitions for how to do so. But I'm not going to go to the trouble of writing it up unless people start getting involved and contributing back into the knowledge base.
I will help whenever I can, but I haven't got the time to do all the legwork myself.
As I said earlier, people need to start stepping up and taking a far more active role in this development. There's precious few of us who are doing so, and some like myself are really getting burned out. The knowledge is out there. But it's not going to be handed to you on a platter.
If you want it, come and get it
OpenPort 2.0 STANDALONE datalogging. 94-99 3S
