EVO8 Bench harness works.. Mostly..
Mar 22, 2007, 12:15 PM
#1
EVO8 Bench harness works.. Mostly..
hey guys, I can finally read and flash an ECU with 4 connectors (Evo8, Evo7 and most other Mitsubishi with 4 connectors on the ECU) At my desk, this is great news.
I'm not able to log the ECU using either OBD-II or MUT at my bench, I'm certain there are a few required signals missing that I'll have to reproduce, but This is a huge breakthrough.
I'm going to make an evo9 bench harness up now that I know it works so I can bench read and flash either as needed.
I was a bit excited so I needed to post about it. I can't use it yet to test mitsulogger yet though, but at least I know it works well enough to do what it was originally intended.
I'm not able to log the ECU using either OBD-II or MUT at my bench, I'm certain there are a few required signals missing that I'll have to reproduce, but This is a huge breakthrough.
I'm going to make an evo9 bench harness up now that I know it works so I can bench read and flash either as needed.
I was a bit excited so I needed to post about it. I can't use it yet to test mitsulogger yet though, but at least I know it works well enough to do what it was originally intended.
Mar 22, 2007, 12:28 PM
#2
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I don't know how much you would be able to test the logger or OBD-II but, bench flashing and testing changes to the application block should be pretty easy for you now.
Mar 22, 2007, 12:57 PM
#4
The Mut Logging is the same thing, I'm not concerned about the values in the data, just that there is a conversation going on so I can verify requests and responses will work. As once the real-time tuning features are implemented, I'll be reading/writing RAM, so if I can test this on the bench, it will cut down on WEEKS of programming and testing.
Mar 22, 2007, 01:18 PM
#6
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Sleeping?
hmm... sounds like you have dependancies on the imobilizer hardware. If you can figure out the pin out on the ECU for the imobilizer, you could easily fake it.
The CEL's can easily be ignored while on the bench. But you might have to worry about RAM addresses being different when the ECU is off the car and on the bench. All I am saying is that it's possible, but unlikely with the EVO ECU.
As long as the MUT request don't have dependancies on the car running, then yeah, you can test what different MUT request/responses look like.
sounds like fun, but also too much like work these days...
hmm... sounds like you have dependancies on the imobilizer hardware. If you can figure out the pin out on the ECU for the imobilizer, you could easily fake it.
The CEL's can easily be ignored while on the bench. But you might have to worry about RAM addresses being different when the ECU is off the car and on the bench. All I am saying is that it's possible, but unlikely with the EVO ECU.
As long as the MUT request don't have dependancies on the car running, then yeah, you can test what different MUT request/responses look like.
sounds like fun, but also too much like work these days...
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Mar 22, 2007, 01:30 PM
#9
Sleeping?
hmm... sounds like you have dependancies on the imobilizer hardware. If you can figure out the pin out on the ECU for the imobilizer, you could easily fake it.
The CEL's can easily be ignored while on the bench. But you might have to worry about RAM addresses being different when the ECU is off the car and on the bench. All I am saying is that it's possible, but unlikely with the EVO ECU.
As long as the MUT request don't have dependancies on the car running, then yeah, you can test what different MUT request/responses look like.
sounds like fun, but also too much like work these days...
hmm... sounds like you have dependancies on the imobilizer hardware. If you can figure out the pin out on the ECU for the imobilizer, you could easily fake it.
The CEL's can easily be ignored while on the bench. But you might have to worry about RAM addresses being different when the ECU is off the car and on the bench. All I am saying is that it's possible, but unlikely with the EVO ECU.
As long as the MUT request don't have dependancies on the car running, then yeah, you can test what different MUT request/responses look like.
sounds like fun, but also too much like work these days...
but then again, I don't have a work shop (yet)
Mar 22, 2007, 01:44 PM
#12
Don't be jealous, the "Test bench" is a plastic mobile storage cube with wheels, it has a 13.8v bench power supply (for powering automotive equipment) Its UGLY and my office is a huge disaster..
a quick photo of the harness and ECU, I'll post something a bit better when I get a chance to solder all the connections and make a swappable interface so I can switch between different harnesses, add the CEL light and switches for power, backup power, and Key-on.
a quick photo of the harness and ECU, I'll post something a bit better when I get a chance to solder all the connections and make a swappable interface so I can switch between different harnesses, add the CEL light and switches for power, backup power, and Key-on.
Mar 22, 2007, 01:45 PM
#13
If you haven't noticed, I don't have the right Sumimoto male connector for the DLC port yet.. But its just a single wire so I figured a pin will be enough. I'm going to pick up a small project box and some switches and indicators this afternoon. Probably use a DB25 connector for the interface to the project box so I can switch harnesses.