A thankful shout out to Forum member 07fit916 for his thread about ECU tuning: https://www.fitfreak.net/forums/fit-...reflash-6.html

Finally there is a way to fix the infuriating rev hang on my manual transmission 2013 Honda Fit. KTuner now supports reflashing of the 2nd generation Fit's ECU (2009-10 and 2012-13). I tried a half-dozen different combinations of parameters, and here are my preferred settings (found under the fuel cut menu of the KTuner program):

Overrun throttle compensation (OTC) = 0%
(compared to factory setting of 100%).

Fuel cut delay (in milliseconds)
1st gear = 15,
2nd, 3rd, 4th, and 5th gears = 0
(compared to factory setting of 100, 60, 60, 60, 60).

The tiny fuel cut delay for first gear makes for a smoother clutch engagement (into second gear) when driving aggressively, but it is short enough to prevent any surging of RPMs.

 

you should post this in the original thread man! also the original ktuner thread actually isnt mine haha. glad its working out for you though.

 

Thanks for posting this. I will probably get a Ktuner just for the rev hang. I still want to run 87 octane since it's my commuter but the rev hang is infuriating.

Are there any other adjustments you've found relevant since posting this?

The ktuner hardware seems kinda expensive for such a small tweak, but the results would be worth it if the rev hang is gone. I'd rather have no rev hang at this point than 20 extra HP.

 

I have never noticed rev hang on this car.

 

I think what bugs more is the dbw lag. And they added adjustability for that on KTuner fairly recently

 

You might be right about the DBW. The throttle behavior seems inconsistent at best. If the throttle was linear, responsive and consistent it would be way better. My older manual transmission cars from the 90's were a pleasure to drive compared to any modern car. It seems like every newish manual car I've driven has some sort of drivability issue.

The best standard I've ever driven was an early S2000, you could drive without thinking about shifting and it worked perfect. Blip a downshift or quickly shift up just letting off the throttle for an instant and it was perfect. In my Fit I'm constantly thinking about my shifting and it still sucks.

 

SuperJ it sounds like you're just looking for a more comfortable driving experience. While I'd like more people to get KTuner so we can get more features and support, it seems like you be happy with a throttle controller and a cmc swap to the em2 clutch master.

 

I already swapped my clutch master cylinder. It was my first mod to the car. I filled the rear motor mount to try and make things a little crisper on engagement but am looking for more.
I've never tried a throttle controller but always thought they were hacks that just boosted the throttle curve so the 0-30% pedal = 0-100% throttle. Maybe I'm wrong? It seemed to me the real fix was in the ECU mapping. My biggest issue with the the throttle is not in the opening, but in the closing, it seems like there is substantial delay between letting of the accelerator and when the throttle gets cut. I can actually take my foot completely off the throttle before I touch the clutch to upshift and the shift is actually smoother, most other standards would fall on their face if I did that (except my 2.0T MT VW Tiguan, it had rev hang bad too).

 

Ah then KTuner is the only way I think.