What happens when switching ECU throttle response? - MVAgusta.net
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 04-25-2017, 06:16 PM Thread Starter
Senior Member
Join Date: Jan 2015
Location: Texas
Posts: 291
New Site Garage
What happens when switching ECU throttle response?

So on the ECU you can select either fast or slow throttle response, but I'm curious as to what exactly happens that is different. Does the fast setting essentially get the throttle body to open up more, sooner? Does it adjust fuel injection rates to be greater? Some combination of both I'm thinking, in order to achieve a slightly richer fuel/air ratio but that is just my uneducated guess.
Spark is offline  
Sponsored Links
post #2 of 6 (permalink) Old 04-25-2017, 10:53 PM
Senior Member
airjawed's Avatar
Join Date: Apr 2017
Location: Memphis
Posts: 565
New Site Garage
All the settings are just different ways to dial things down. It won't do anything faster or more.

Fast throttle is like normal... slow is like turning your wrist slower. It will not act faster than your wrist in fast... just slower in slow.

Put the bike in Rain mode and you'll see everything is neutered much more. Less max power, slower engine acceleration, slower throttle response.

Same with traction control... max is no traction control. As you increase traction control you are increasing the amount the engine pulls back when the wheels overspin.

Race mode ABS is like having less ABS...

You get the point?
airjawed is offline  
post #3 of 6 (permalink) Old 04-26-2017, 12:13 AM
Senior Member
Join Date: Apr 2016
Location: Herefordshire, UK
Posts: 1,628
New Site Garage
As I see it; that setting in particular is a softening, or hardening, of the directness of the throttle input you apply. As an analogy imagine some elasticity in a throttle cable for the soft setting. One of the advantages of a fly-by-wire throttle and the electronics in between it and the Fi.
Bumpkin is offline  
Sponsored Links
post #4 of 6 (permalink) Old 04-26-2017, 05:06 AM
Senior Member
Join Date: Oct 2015
Location: Herefordshire / Monmouthshire Border, UK
Posts: 771
The ECU’s in the F3 and F4 are basically the same, with the same approach to control. The info I have pertains to the F4 but is transferable by principle to the F3.

There are numerous maps in the ECU, changing the selection of Normal, Sport, Rain or the custom settings do not change the base maps i.e. ignition, fuel etc. What they do appear to change is the data provided to the tables. e.g. the hand throttle position is translated in to an accelerator position (at the throttle bodies). The throttle at your hand is relative position, as it can be mapped to different actual throttle body positions. see attached pic.

Parameters that are changed based on the selection of Normal Sport or Rain or the custom settings

• Engine Braking, maps for Normal and Sport
• Max RPM, maps for Normal, Sport & Rain
• Throttle position, maps for Normal, Sport & Rain
• Max Torque, maps for combined map for Normal & Sport, separate for Rain
Attached Images
dansoarr is offline  
The Following User Says Thank You to dansoarr For This Useful Post:
post #5 of 6 (permalink) Old 05-02-2017, 10:59 PM
New Member
Join Date: Feb 2016
Location: Los Angeles California
Posts: 23
I like these settings:

Power Mode: Custom
Traction Control: 1
Gas Sensitivity: Normal
Engine Brake: Sport
Maximum Torque: Sport
Engine Response: Slow
RPM Limiter: Normal

Here's a link to an article that will further explain what each setting actually does.

2014 MV Agusta F3 800 First Ride Review | GearOpen

MV Addiction is offline  
post #6 of 6 (permalink) Old 05-03-2017, 05:07 AM
Senior Member
Join Date: Apr 2012
Location: Hertfordshire UK
Posts: 1,178
Send a message via Skype™ to Bruce Taylor
Thanks will try it
Bruce Taylor is offline  

Quick Reply

Register Now

In order to use all of the features of the MVAgusta.net site, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome