Throwing down the gauntlet against Toyota's ECU
09-18-07, 01:21 PM
#1
Throwing down the gauntlet against Toyota's ECU
Some of you know me, some of you dont. I've been here a very long time and have been an avid Toyota/Lexus fan (specifically the JZ-based chassis cars) for many years.
In my other experiences with other manufacturers, I find they all have one HUGE benefit over Toyota when it comes to aftermarket performance. The data for the Nissan, Honda, and Mitsubishi ECUs is readily available to anyone that wants to know. Memory addresses are mapped down to every option and the ECU can be reprogrammed to literally stand on its head.
I'm absolutely sick of not having this option when it comes to Toyotas (OBD1 specifically). You either pay big cash for an unreliable AEM, or a smaller amount on a unit from a small list of piggybacks with inconsistent results. The pricing of Techtom flashing ($800+) is absolutely ridiculous when you consider the cost in parts of building something like it (about $15).
Dramon and I have decided to undertake an abstract project of more aftermarket ECU options for the JZ-chassis. Including Plug and Play options for Megasquirt2, using GTE injection/ignition/ECU system on GE cars, and ultimately to hacking the GTE/GE ECU itself. We are well on our way with the first stage: research and idea-making/planning. We've dug up some striking data on the ECU already that wasnt commonly available.
We intend to turn the underground and hush-hush BS of the Toyota ECU modifying on its head; capitalism be damned. We will eventually offer to flash your car for you but will offer the DIY components for those that wish to do it themselves, but right now this is just a research and development project with a completely open forum. We want the best and the brightest and those willing to learn to come help us with these various projects.
Come post: http://www.clubna-t.com/forums/forumdisplay.php?f=51
We're debating on setting up research teams. Researching by scouring the internet and other offline libraries for various information that we need; and to engineer solutions to problems. Dramon and I are both doing this in our spare time because we enjoy the challenge and enjoy working with this kind of stuff.
Making a PCB that could double as a datalogger (since the sampling rate of the stock ECU is something on the verge of 200fetches/second) would be outstanding. Software can be developed to make an interactive gui when reading the ECU's output, etc... the possibilities are endless and it literally gets me giddy inside thinking about it
Come one come all!
In my other experiences with other manufacturers, I find they all have one HUGE benefit over Toyota when it comes to aftermarket performance. The data for the Nissan, Honda, and Mitsubishi ECUs is readily available to anyone that wants to know. Memory addresses are mapped down to every option and the ECU can be reprogrammed to literally stand on its head.
I'm absolutely sick of not having this option when it comes to Toyotas (OBD1 specifically). You either pay big cash for an unreliable AEM, or a smaller amount on a unit from a small list of piggybacks with inconsistent results. The pricing of Techtom flashing ($800+) is absolutely ridiculous when you consider the cost in parts of building something like it (about $15).
Dramon and I have decided to undertake an abstract project of more aftermarket ECU options for the JZ-chassis. Including Plug and Play options for Megasquirt2, using GTE injection/ignition/ECU system on GE cars, and ultimately to hacking the GTE/GE ECU itself. We are well on our way with the first stage: research and idea-making/planning. We've dug up some striking data on the ECU already that wasnt commonly available.
We intend to turn the underground and hush-hush BS of the Toyota ECU modifying on its head; capitalism be damned. We will eventually offer to flash your car for you but will offer the DIY components for those that wish to do it themselves, but right now this is just a research and development project with a completely open forum. We want the best and the brightest and those willing to learn to come help us with these various projects.
Come post: http://www.clubna-t.com/forums/forumdisplay.php?f=51
We're debating on setting up research teams. Researching by scouring the internet and other offline libraries for various information that we need; and to engineer solutions to problems. Dramon and I are both doing this in our spare time because we enjoy the challenge and enjoy working with this kind of stuff.
Making a PCB that could double as a datalogger (since the sampling rate of the stock ECU is something on the verge of 200fetches/second) would be outstanding. Software can be developed to make an interactive gui when reading the ECU's output, etc... the possibilities are endless and it literally gets me giddy inside thinking about it
Come one come all!
Last edited by Bean; 09-18-07 at 02:23 PM.
09-18-07, 02:05 PM
#2
Lexus Test Driver
Join Date: Sep 2006
Location: FL
Posts: 1,183
Likes: 0
Received 0 Likes
on
0 Posts
Makes perfect sense... A few of my boys have subarus and they have piggy back programmers that allows them to reflash and config their ecu's to what ever they want to do. Completely plug and play. The basically turn their OEM ecu to a standalone from factory..... The way to start would be people in Aussie and JDM mother land that have contact with companies like Mines blitz,stealth and so forth. They obviously have cracked in the jz ecu because they know how to reflash them. I'll get on soarercentral to see what they can find.
Thanks Bean, I hope this keeps up.
Thanks Bean, I hope this keeps up.
09-18-07, 02:28 PM
#4
Makes perfect sense... A few of my boys have subarus and they have piggy back programmers that allows them to reflash and config their ecu's to what ever they want to do. Completely plug and play. The basically turn their OEM ecu to a standalone from factory..... The way to start would be people in Aussie and JDM mother land that have contact with companies like Mines blitz,stealth and so forth. They obviously have cracked in the jz ecu because they know how to reflash them. I'll get on soarercentral to see what they can find.
Thanks Bean, I hope this keeps up.
Thanks Bean, I hope this keeps up.
I've found some errors in cross referencing this processor, the D151802 comes up as an Intel MCS-51 variant when it isnt since the MCS51 is a DIP-40 and the D151802 is a DIP-64. I'm still looking. Most of the info that comes up about it is in Japanese or Chinese.
I have found out, however, that the Subaru and FD RX-7 guys use similar or identical chips.
Trending Topics
09-18-07, 09:17 PM
#10
If there was a program you could replicate, it should be DSMLINK. I use to run this on my 1g talon. It took me deep into the 10's with reliability daily driven. Heres a link: http://www.dsmlink.com/
09-18-07, 10:12 PM
#11
Lexus Test Driver
Join Date: Jun 2005
Location: Baton Rouge, Louisiana
Posts: 1,126
Likes: 0
Received 0 Likes
on
0 Posts
This is AWESOME! The honda guys can solder in a chip, download free software, and use a chip burner to burn thier own custom chip. Costs less than $200, or so for a complete setup.
Ive seen them change the chip with a different one, in just a couple minutes. Heres a website:
http://forum.pgmfi.org/
Ive seen them change the chip with a different one, in just a couple minutes. Heres a website:
http://forum.pgmfi.org/
09-19-07, 11:35 AM
#14
Driver School Candidate
Join Date: Jul 2007
Location: IN
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
I work for a company that makes racing data acquisition and ECUs. Also have access to chip programmers as well. I focus on different software support, but if I can help, let me know. I utilize a 02 2jz-ge vvti vehicle at the moment.
09-19-07, 11:55 AM
#15
Lexus Champion
That'd be awesome! I feel good about this project.