Basically, the bike’s brain gets fully reprogrammed.
With a flash, the code within the stock ECU itself gets rewritten. More recently, the “flash” technique emerged, and FlashTune is by far the biggest name in this field.
The Power Commander’s wiring harness plugs into the fuel injectors, throttle position sensor, and other sensors and the module manipulates the signals so that the ECU makes the desired changes to the fuel and ignition curves. “Piggyback” means the unit sits on top of the existing stock hardware, literally. DynoJet's Power Commander is a popular tuning option for a variety of modern EFI motorcycles, from Groms to GSX-Rs.
Ecu flash tune install#
You also need to tune your fueling to ensure your engine is safe, because if you’re running lean due to changes to the intake or exhaust, you could be at risk of damage.Īs mentioned earlier, to tune a modern EFI bike you either get the ECU flashed, or install a piggyback module like a Power Commander.ĭynoJet's name harkens back to the days when you tuned a bike by swapping out the jets in the carburetor. Because even in stock form, government restrictions, plus liability and reliability concerns from the manufacturer, likely mean your bike isn’t performing as well as it could in, say, a world without speed limits or concerns over greenhouse gasses.Īnd of course if you’ve replaced your exhaust system or installed a high-flow air filter, or done any motor mods like a big bore or cams, then you need to tune your fuel (and perhaps ignition timing) to suit the new setup, or you’re leaving power on the table.
What’s the point? More power and improved throttle response, mainly, by way of optimized fuel and ignition curves. With that out of the way, you might be wondering why you would want to “put a tune” on your bike in the first place. Power Commander For Engine Tuning | The Shop Manual