187 replies to this topic

[fixitsan]

So much for a 'Paperless Society'

On the back of your bills where it says 'do you want to go paperless' please tick no !


my big customer here just this morning announced closure by July. Due to declining print volumes thanks to t'internet

[dandywarhol]

Jeez San, I didn't expect War and Peace   but thanks for sharing. 

 

Stick with what you do best - the good ol' days of teaching are fecked! Education is now a "business" and students are now called "customers" 

[fixitsan]

Yeah i know, never been asked about my background except in an interview and it made me think. Thats who i am so far anyway



In other news ive bought a spare ECU to play with...... ☺

[TDMick]

On the back of your bills where it says 'do you want to go paperless' please tick no !


my big customer here just this morning announced closure by July. Due to declining print volumes thanks to t'internet

I never believe anything I read on the internet anyway.

I don't even do self service tills!

 

Ooo...er

[TDMTAM]

Jeez San, I didn't expect War and Peace   but thanks for sharing. 
 
Stick with what you do best - the good ol' days of teaching are fecked! Education is now a "business" and students are now called "customers" 

Ain't that the truth.

Tam

[Bjørge]

[...] then tried to get into teaching but needed that  degree that only posh kids did, so at 36 I started at Edinburgh Napier on a Mechatronics degree to consolidate my experience and fill some gaps in my knowledge, finished when I was 40, then was told I needed to do higher English literature for a year in order to get to teacher training college, but I needed to get back into work to pay the mortgage [...]

 

 

Much a parallell to my professional & educational story  only different combination of professions. I studied for a teacher too, but before I got there it seemed I had made a left turn.... Got into programming instead, and have been there ever since....

 

I still haven't done half the things I think I want to do, but when i get out on the bike none of that seems to matter really 

 

....kinda same here... bike's kinda earthing or whatever....meditational....err....

[fixitsan]

Managed to dump the contents of my ECU !

 

 

It's nice that at the end of the file it's signed by Yamaha !

 

 

 

 

I don't know what'll happen when i try to add the .bin file to this post.....

Got a long way to go yet, but now I seem to have the correct tools for talking to the ECU and getting it to deliver. Need to find the maps and functions now....so I'm off to some useful hacking websites for help with that

 

[attachment=7472:TDMFLASH.txt]

 

 

 

 

 

 

[chrisr]

Managed to dump the contents of my ECU !
Did you mean to?
 
 

Edited by chrisr, 19 February 2016 - 04:58 pm.

[adamg]

I fitted my power commander and disconnected the lambda sensor last weekend. It's like a different bike, smooth at low revs with no jerkiness on or off the throttle. Good luck with the ecu remap!

[fixitsan]

The gotcha is that the software which downloads the ECU contents can also write a modified file back just as easily, if you pay $150 for the licence. I suppose spread over a group of people that could be very cheap, not sure I want to go there myself

 

Still considering my own options, if i could remove the limiters in the lower gears that would be a start. The limiters are definitely there......try accelerating in 4th gear, hard from 2500rpm upwards,....the bike pulls really well - and it pulls just as well in 2nd gear....which is fine but shouldn't it pull much harder in 2nd gear than it does in 4th gear due to the torque multiplication of the higher gear ratio (lower gear number selected). most manufacturers seem to  inhibit performance in lower gears to kill the wheelie-machine effect....... adding a power commander to a limited bike just smooths out the limited torque.....I would rather have full torque in every gear.

Managed to dump the contents of my ECU !
Did you mean to?
 
 

 

 

Sometimes i can seem inept...this time was deliberate though !

Edited by fixitsan, 19 February 2016 - 06:54 pm.

[leehenty]

so how does the ecu know what gear it's in ?

[fixitsan]

so how does the ecu know what gear it's in ?

 

It's usually derived from the speed sensor and engine rpm. , for example 4000rpm ( almost) and 70mph = 6th gear. 

[fixitsan]

Actually Lee you've made me wonder what happens when the speed sensor is disconnected. ....maybe it goes into a 'limp home' .... it will certainly confirm the notion of limiters, one way or the other. Perhaps someone already knows- is there a speed sensor fault code ?

[leehenty]

no normal signals from speed sensor leads to fault code 42, but a fault in the neutral switch also leads to the same code. These two faullts can be separated by using diag code 07 and 21.

Edited by leehenty, 19 February 2016 - 11:37 pm.

[fixitsan]

Sadly because of the weather I'm not able to get out and play as i'ld like to.

[celticbiker]

How would that be effected by re gearing?
I have changed the rear to a 44 and have a yellow box to modify the signal.
The revs read higher but speedo is correct. According to your model the ecu won't know what to do because it won't have a map for these conditions and will go into limp mode but this isn't the case.

[arthurbikemad]

I don't think the TDM's ECU is that complex tbh, ignition mapping and fuel may be fairly complex as are most late Jap ECU's (i.e tabled for the revrange), Suzuki's GSXR1000 for example has highly complex ignition timings (per gear etc), well I say highly there is more going on than you may expect, the ECU dump is very nice but decoding it is the issue imo, all very well having it but unless you can translate it and change the parameters you're targeting? Also mapping requires a dyno to see the AFR or how can you determine your target values, as prob said best AFR never makes best power and so on, so then ideally you'd want to map each cylinder, so probe points etc are also required, guess if you have the time and skill then why not have a play. As for dynojet they do have ignition modules for ignition timings and for those that ask wideband sensors are used for autotune that can be used in conjunction with the PCV, just not for the TDM. Not saying that someone with the knowledge could not find a similar model PCV and cross it over to the TDM, then you maybe onto an autotune TDM. Personally I want my TDM to remain simplistic as I have spent far too long adding secondary software, firmware and other electronics to bikes. Stan, interesting past you have, I failed rules and regs at 14, used to mess around with slowscan TV, 6.6 and other forms of rad coms, worked in digital video and large format printers, inkjet and dysub for a good while, then networking (novel and Windows NT), now run my workshop, electronics and computers still play a large roll in my day to day, of late I run my father's reclaim yard, Tig welding and other things fill my day to day.. 

 

Oh and as for gear determination, math is used to a high degree as you say (not sure about the old TDM), with quickshifters like the HM GP they take that math to a new level using complex algorithms to determine instant gear position without the use of rotary gear position switches Maybe the old TDM hides her secrets well haha 

Edited by arthurbikemad, 20 February 2016 - 08:19 am.

[fixitsan]

Where do you install the yellow box which circuit ?)

The tolerances for going up or down a couple of teeth or still much smaller than individual toothed gear differences. Tolerances are needed to accommodate speedo innaccuracies caused by tyre wear too
Arthur. The reason i was able to read the ECU data was because i used a modified GSXR ECU programming tool. The TDM uses the same processor....both ECU's are 16-bit units made by Denso.

if you have a look at the screenshot i posted a few messages back the timing maps for different gears are clearly visible

[arthurbikemad]

There used to be a pile of info here:- (for anyone who's interested)

 

http://ecuhacking.ac...k?forumID=99460

 

Some years back Stan I spent hours reading through GSXR ECU's, they proved to be way more complex in regards to what was going on than expected, keep digging it's defo interesting what your doing.

[fixitsan]

The TDM uses the same processor as the GSXR ECU....they're made by Denso. I was only abke to read my ECU by using a version of the GSXR ECU reader. The early R1 and R6 had it too.

makes a lot of sense to use something which already exists....no point in reinventing the wheel