2019 Accord 2.0T manual poor/no decel problem solved?
Posted: Fri Oct 06, 2023 6:44 am
I've got a 2019 2.0T 6MT that after flashing stage 2 the engine braking was absolute shit. On a recommendation I adjusted "overrun injector restart RPM (cut)" to 6900 RPM in the last cell and uploaded it, and to my surprise it was EXACTLY what I was looking for! Cut to this morning driving to work, I put the car in cruise and headed to work. When I got off the freeway, to my surprise the decel was shit again! On a hunch I opened the Hondata app and watched injector duration and throttle plate, then toggled cruise control (the "main" button, not "set>cancel") and that was exactly what was causing it! I took a screen record of the app toggling it on and off but can't get the file to upload here for some reason.
With cruise on but not set and no throttle pedal input, injector duration is 1.0ms and throttle plate is at 6%. Then when I push the "main" button and turn off the cruise system, injector duration drops to 0.5ms and throttle plate drops to 1%. In this configuration the car drives MUCH closer to the way a traditional cable driven throttle body does (which is what I was looking for) and throttle response is much snappier. HOWEVER it means that I have to actually turn the cruise control system off (as opposed to just hitting the cancel button) whenever I want the car to perform well.
Does anyone know if there's a way to get rid of this so that it performs well regardless of if the cruise/LKAS system is on or not?
With cruise on but not set and no throttle pedal input, injector duration is 1.0ms and throttle plate is at 6%. Then when I push the "main" button and turn off the cruise system, injector duration drops to 0.5ms and throttle plate drops to 1%. In this configuration the car drives MUCH closer to the way a traditional cable driven throttle body does (which is what I was looking for) and throttle response is much snappier. HOWEVER it means that I have to actually turn the cruise control system off (as opposed to just hitting the cancel button) whenever I want the car to perform well.
Does anyone know if there's a way to get rid of this so that it performs well regardless of if the cruise/LKAS system is on or not?