Are there any options?

I ask because I have a 2013 and it comes with the throttle inhibit if you try to left foot brake. I Really want to disable this feature. I'll try to contact the dealer and see if its possible to remove.

Or is it possible to swap with a 2010 ecu that doesn't have it, I wonder?


Anyways Flashpro is holding out and I really want to be able to tune the Fit. They said the Fit ECU was more like the TSX than CRZ.. Any one ever look into/consider a swap to a TSX ECU?And then flashpro it?

 

It doesn't let you press the gas and brake at the same time?

Well that sucks.

In for more info, you said the 2010 doesn't do this, I can confirm.

 

turn vsa off, or unplug the ABS motor to completely disable.

I left-foot brake all the time on my little curve runs. Its the only way I keep up with my buddy's BMW with 4 times the power, but worn out tires lol

 

Its unrelated to VSC or ABS. Its literally a signal that when it sees brakes applied it will disable throttle input. Im out of state for a week and away from my car, but I have an idea of cutting the brake signal to the ecu. Should prevent that as long as it doesnt cause me any unforseen headaches.

Its a safety reponse to the sticking throttles in the toyotas..... or so Ive gathered.

 

DO you have a schematic of the wiring for the Fit and what wire does what? To me it just sounds like a bad idea to be going and cutting a wire to the ECU to disable the brake signal. My bet is it would throw a CEL as well.

 

this is foolish

When Im carving up some corners and left foot braking, I do NOT see or feel a power cut.

Perhaps you are hitting the brake way too hard. Even on my Torque app that is monitoring OBD2 data, it shows my throttle still working, all I see is a drop in timing advance due to the extra load from using the brakes to swing the rear around.

This is NOT a response to Toyota, whatever you heard. Keep in mind, the SAME EXACT sensors that toyota was using on those supposed troubles are the same sensors that various GM vehicles were/are using. Not every domestic car is using only domestic parts. I think perhaps only the trucks are using more then say, 20% domestic parts. And even then, nearly all maintenance/repair parts are of oriental origin anyways

 

Out of the THREE GE's Ive owned. With a combined mileage 120k miles.

I CAN without a doubt tell you that just touching the brake pedal so that the car registers it. Will cut my throttle input for the duration of pressing the pedal and a 1-2 sec delay after the fact. My passangers can tell without a doubt.

Now if I let off the gas and then use the brake it is unaffected.




Its only when im using both pedals simultaneously.

I appreciate your post. But it depends on the year of your car. My other two DID NOT do this. Just my 2013

 

https://www.fitfreak.net/forums/2nd-generation-ge-08-13/71226-2012-acceleration-problem.html
Page 4 has some useful info.
This isnt isolated to just me.

 

Mine is a 2013 as well. I can view gauges on my phone via Torque and bluetooth OBD2

I think what you are feeling is the sever cut in timing. My timing will actually go near zero or even negative during left foot braking.

That is enough to feel an abrupt power loss, and it does take a second or two for the ecu to crank the timing back up.


Unless my ecu is sending flawed signals to my OBD2 adapter, I do think the throttle cut is inaccurate

EDIT an easy way to check is watch your MPG gauge. If it maxes out, you might have a cutout. If this is a true and valid feature, my car definitely does NOT reflect it. I believe my car was manufactured in March 2012 in the Sayama plant (2013 base manual)