Impreza_ClassicShape00 wrote:@richh:
with "normal drivers" i don´t mean normal car user.
i meant people who don´t earn money with tuning as their job ok.
Same point applies. The ability to wholesale remap the ECU has far more opportunity to screw things up than, for example, a manual boost controller. Aside from anything else it isn't difficult to turn a JECS unit into a doorstop - this happens occasionally even using Flash99.
it´s clear that you have to know what you do in detail.
Indeed you do.
i´ve read the main jecs-thread but at the end there is no solution
There isn't an open source solution, no.
if i understood this right there is also a difference between the cables for the 2001+ models right?some cables allow just logging and reading,others allow also flashing.both have the iso 9141-2 compatible interface.
Yeah, that's what I said above. All such interfaces are ISO9141-2 hardware at heart. To flash, you also need to supply the flash voltage. My understanding is that the same applies to the 99-00 cars.
but my "problem" is that i know that ecutek can do this,and thats only a interface and a program,too.
The inference there is that the Ec*t*k interface is also configured to supply the flash voltage. And yes, the program code is also vital, you need that to get the ECU to put itself into reprogram mode.
but every pre 2001 driver has to know how they do it because he must have seen it while they tuned his car...
Lol, what do you think happens when you get your car T*k'd? It's not like you actually see the code being pumped into the ECU. All the driver sees is the technician connecting the interface to the diagnostic port, fiddling with some maps with his laptop, and clicking the mouse a few times.
The clever bit is all done at an electrical level, and even if it wasn't, 99% of the drivers who have this process performed on their cars don't have the first idea what is actually happening, nor do they want to.
The only way to find out with any certainty how it's done by the established method would be to hook a datalogger to the back of the diagnostic port and get your car Ec*T*k*d. You'd then see from the logs how it was done. Trouble with that approach is that, aside from being a dirty cheat, it'd no doubt prompt a response from Ec*t*k.
At end of day they found out how to do it. It shouldn't be impossible for others to discover it for themselves.
there must be a solution
There is a solution. If you want it now, it is called Ec*t*k. If you don't mind waiting, someone else might come up with an open source alternative.