You know: Build a connector to connect to the COM terminals of the ECU, incorporate a power supply to this harness, download "this" software (even if I have to pay for it), open software, connect to ECU, etc.Īlso, please don't tell me something is "best left to a professional". I understand the theory of ECU tuning, I want to know specifically how to do it. I started getting better hits when I tried DIY ECU flash. The piggyback tuners can only screw with the injector signal.Īnd I know how to use Google (boolean search and what not). You get way more tuning parameters too, like everything I've seen in these Flash your ECU websites like turning off decel fuel cut or bypassing o2 sensors, etc. Now they've gone to a CANbus USB type that goes right onto the ECU port in the wiring harness and allows you to tune from an app on your phone. In the 00's and early teens the tuners were the piggyback style that would alter the pulse width and duration of the injector signal to give more fuel. Not sure I'll ever see that though.Ĭlick to expand.Actually tuning in the Harley world went in the opposite direction.
![motorcycle ecu flash tuning motorcycle ecu flash tuning](https://www.chiptuners.co.uk/wp-content/uploads/2016/03/ecuremapping.jpg)
I dream of the day we will shove a usb stick (like flashing a tv) in a connector and it will load a csv file containing the mappings (or write back out why it was rejected, like non-monotonic or unsafe values). with a steep entry cost I think, unless the info I found is old style. So, doing it yourself is an admirable idea. The investment is high for the seller and the return takes time. So essentially the client pay for data to be installed and the research time. Considering that the cost of an ecu component is 200+ it is a not a good offer to provide one to clients.
![motorcycle ecu flash tuning motorcycle ecu flash tuning](https://i.ytimg.com/vi/cKhRInmXCOE/maxresdefault.jpg)
The mapping becomes a precious secret practically copyrighted. There is much tuning and you can guess there is a lot dyno time for a top quality map. Every throttle position (a collection of ranges) and rpms (another collection of ranges) maps to an injector opened-closed cycle, iirc. The other side of it, the one trying to make a business of it, is not designing a mapping out of guesswork. (I'm not advertising, it's just a search result) Chances are that in the future maybe a good soul will write opensource for it, but the cost of the physical interface will likely jump up, because there is money to make from flashing ecus. It involves some equipment obviously to connect to the physical interface with a computer, and a software which is likely not free either.