s60rawr
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« Reply #1695 on: October 17, 2022, 12:11:49 AM »
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Your saying that if an ECU is unresponsive after a bad upload it'll still be recoverable in boot mode?
My case might be different. ECU does not want to read via bootmode. Read fails between 20% to 60% Tried several times. When attempting to start car, start not approved. When connecting with vida, the ECU shows offline.
I tried another ECU in the car and it shows up as online. Do you know what chip or smd might fail on the ECU? Or how to test a dead ECU?
i've always had a 12v charger connected on so a constant 12v is there during flash. heard too many stories lol |
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Mach1
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« Reply #1696 on: October 17, 2022, 01:06:19 PM »
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i've always had a 12v charger connected on so a constant 12v is there during flash. heard too many stories lol
Sounds like your referring to flashing via OBD. Bootmode is done on bench. Do you have a method for reading over that you can share? |
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SparkyR
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« Reply #1697 on: October 17, 2022, 02:14:13 PM »
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I’ve been able to save many via obd2 but the ones I’ve had no luck via obd2, boot mode has worked
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2005 S60R m66, Xona Rotor 7864, turbosmart 45mm wastegate, id1700cc injectors
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dikidera
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« Reply #1698 on: October 18, 2022, 10:27:15 AM »
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Hi all. This is the ME7 thread, but I need to ask about the Denso ECUs. As you know the 140hp model can be unlocked to at least 170hp, some claim even 188. Btw I am no tuner, but I love open source stuff and reverse engineering so I went hunting. I managed to find two files(manual transmission) and compare them and found two maps(identical) which were changed. https://imgur.com/t1dxls1 and it took me a very long time to find the correct factors for X and Y axis, but not the map and here it is https://imgur.com/a/jfHVpH0 ( i used a random factor of 0.227 so ignore the displayed values for now). From my research the map should be a throttle plate angle or something similar, but not sure about the factor. I would greatly appreciate if anyone has an idea about what the map values represent and how the map is called. @prometey1982 - are you not the guy who managed to swap an AW55 for a TF80SC? Is this "easy"? I want to do this for my S60 2005 in the future. Why? Because 6 speed so more speed, less noise, also the tranny can handle more torque. I want to build a turbo 2.3(2.3 block with 2.5 head) of around 400-500hp but also have it be automatic. I know the aw55 cannot handle a lot of torque, and even the tf80, but the tf80 can handle more than the aw55 and with tuning + cooler maybe it can withstand the high torque? @prometey1982 is the torque limiter of AW55 in 1st and 2nd gear in the TCM firmware or ECM? Anyway, I built a thing https://imgur.com/a/CdaZPI0. I plan to use this device to read, log and flash from ECUs. Its barebones for now. |
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« Last Edit: October 18, 2022, 11:14:26 AM by dikidera »
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Mach1
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« Reply #1699 on: October 19, 2022, 06:52:45 PM »
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Very nice! Are you planning to open source any of it? @prometey1982 is the torque limiter of AW55 in 1st and 2nd gear in the TCM firmware or ECM? Anyway, I built a thing https://imgur.com/a/CdaZPI0. I plan to use this device to read, log and flash from ECUs. Its barebones for now. AW55 should be torque limited in 1-3 gears |
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SparkyR
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« Reply #1700 on: October 19, 2022, 06:56:12 PM »
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I use tools that have been posted on here
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« Last Edit: October 19, 2022, 09:03:00 PM by SparkyR »
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2005 S60R m66, Xona Rotor 7864, turbosmart 45mm wastegate, id1700cc injectors
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prometey1982
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« Reply #1701 on: October 20, 2022, 04:04:11 AM »
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AW55 should be torque limited in 1-3 gears
Nope, 1 and 2 gear as TF80 too. |
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prometey1982
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« Reply #1702 on: October 20, 2022, 04:06:47 AM »
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@prometey1982 - are you not the guy who managed to swap an AW55 for a TF80SC? Is this "easy"?
Practilally bolt on. If you talk about s60 or s80. More complicated for XC70 and XC90 due to different wheel diameter. For correct TF80 work TCM firmware must be modified. |
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dikidera
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« Reply #1703 on: October 20, 2022, 07:59:39 AM »
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I use tools that have been posted on here
Yeah but no hardware. I do not wish to buy KESS, MPPS or VIDA DICE or whatever else tool. But the software is a nice welcome addition. @prometey1982 - Can you share what those modifications are? I've been using IDA and Ghidra to explore my ECU code, I have to say...SH-2 is an awful architecture for Denso ECUs, I hope the ME7 stuff is a bit good. And lastly, any ideas about the map, guys? |
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s60rawr
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« Reply #1704 on: October 20, 2022, 11:20:03 AM »
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dikidera
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« Reply #1705 on: October 20, 2022, 12:24:38 PM »
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Thank you, that is a huge treasure trove. Nothing on the Denso stuff, I must keep digging. In the meantime, the Volvo ETM should have a maximum opening of 86 degrees, the Vida Dice unit performs tests and the throttle has a maximum angle of 80 degrees there. The raw map has a value of 1736, at first I thought these were radians, but 1.736 radians is 99 degrees and I am sure as hell that can't be the throttle angle. Then I experimented with a factor of 0.046, which brings the value to a sane value of 79,9, which is believable as far as throttle angles go.
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« Last Edit: October 20, 2022, 12:39:32 PM by dikidera »
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s60rawr
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« Reply #1706 on: October 20, 2022, 12:32:04 PM »
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Thank you, that is a huge treasure trove. Nothing on the Denso stuff, I must keep digging.
yea i dont know much about the denso stuff, sorry. |
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SparkyR
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« Reply #1707 on: October 20, 2022, 12:46:13 PM »
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I’ve never had the need to tune a denso
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2005 S60R m66, Xona Rotor 7864, turbosmart 45mm wastegate, id1700cc injectors
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dikidera
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« Reply #1708 on: October 20, 2022, 12:53:53 PM »
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I guess I can try live logging and try and correlate the throttle plate angle to the values in the map and reverse the factor from that. Hopefully I can make some progress in the coming weekend.
Also, thank you for the tools again!
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SparkyR
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« Reply #1709 on: October 20, 2022, 12:54:50 PM »
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Volvo dha may be of some help to you
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2005 S60R m66, Xona Rotor 7864, turbosmart 45mm wastegate, id1700cc injectors
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