maiku wrote:What is the option there for if it doesn't do anything?
For vehicles without VSA.
This is fairly easy folks: If your vehicle has VSA, then enable it; if it does not, then disable it.
I'm pretty sure the common notion was that disabling it in the tune meant you could turn it off permanently without having to press the button every time you want it off. Hence why everyone checks the box to disable it no matter the year. This might want to be more explicitly stated somewhere for everyone to see it if this is the case.
Thanks for the help. I'll enable it again and disable it using the switch instead and see how that goes next time at the road course.
If your vehicle has VSA but you disable the ECU portion, then the ECU will not send information to the VSA unit and will also not respond to VSA requests to reduce power. The VSA generates error codes which can be read with the HDS.
Hondata wrote:If your vehicle has VSA but you disable the ECU portion, then the ECU will not send information to the VSA unit and will also not respond to VSA requests to reduce power. The VSA generates error codes which can be read with the HDS.
How does the ECU "reduce power" when the VSA asks it to? Will it cut fuel or close the throttle plate? Because if your boosted, cutting fuel could be catastrophic to the engine if the tires started spinning under full boost/load. Because before FP, when I was running emanage, I had forgotten to shut down the VSA a few times and when it would activate, I would see the wideband showing high 13s to low 15s when VSA would activate. I didn't damage anything because I was extremely fast to let off the throttle and it only happened once or twice. But I am curious to know how the power is actually reduced.
Hondata wrote:By closing the throttle. Cutting fuel is the same as a rev limit and will not damage the engine.
Ok. So does the VSA close the plate all the way and cut fuel completely as well? Because if it only reduces fuel then we have a problem. That is what I'm asking. If it uses less fuel and closes the throttle only enough to reduce power won't that cause a lean condition under full boost?
