Throttle Pedal Sensitivity - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Nah · 12-04-2016, 11:12 PM

Hello everyone,

Thank you for reading.

I am asking the community for some help with my throttle pedal.

I've done everything this community has to help but honestly It's not where I want it to be.

No matter what I do... I still cannot get my throttle pedal to be smooth.

I've dialed in my tune. Trims are in within 3% everywhere. Cams have been adjusted by adding 2 degrees starting with the intake.. Timing is advanced uniformly where needed. I've ran DI from .1 to .3...

DI up until .3 is the sweet spot for an aggressive street tune.

Adjusting torque requested tables so they are more linear. This helped tons with high RPM throttle sensitivity.

I changed my throttle activation from 1.5 to 1%. That seemed to help too but I'm not to sure I have to test a different setups.

Please any help is appreciated. I've tested many different theories and the ones on here have always worked out perfectly. I'm done with the dial in. Is there anything else I can do to "fine tune?"

Turdinator · 12-05-2016, 12:26 AM

Can you be more specific about what you don't like? Do you have the manual or auto gearbox?

phrosty · 12-05-2016, 12:38 AM

Have you tried replacing foot?

504 · 12-05-2016, 01:39 AM

I think alot of people including myself think that the on off throttle jerk is tune related, upgrade rear subframe bushings and you'll be laughing

aagun · 12-05-2016, 04:09 AM

nah is it custom or stock rom that u apply the change?

Nah · 12-05-2016, 12:07 PM

Custom tune using Wayne's definitions. Manual. I'm going to upgrade those bushing and get back to you guys with a B&A. What bushings did you go with?

Basically it's just a jolt when just pressing the throttle when cruising to accelerating. Mainly in the 3-4k range.

Nah · 12-05-2016, 12:08 PM

my foots pretty big don't see a need to replace it...

chas3wba0 · 12-05-2016, 01:31 PM

Have you driven on the same tune for a at least a week without flashing? After flashing a new tune, it is normal for the throttle sensitivity to be off... usually takes a few drive cycles to get better.

Nah · 12-05-2016, 01:35 PM

Quote:

Originally Posted by chas3wba0

Have you driven on the same tune for a at least a week without flashing? After flashing a new tune, it is normal for the throttle sensitivity to be off... usually takes a few drive cycles to get better.

Yes of course. And if you slowly push the throttle with the key in the on position the ECU will learn the movement much faster

12-04-2016, 11:12 PM	#1
Nah Senior Member Join Date: Jan 2016 Drives: 2013 Scion Frs 6mt Location: Florida Posts: 234 Thanks: 85 Thanked 48 Times in 32 Posts Mentioned: 1 Post(s) Tagged: 2 Thread(s)	Throttle Pedal Sensitivity Hello everyone, Thank you for reading. I am asking the community for some help with my throttle pedal. I've done everything this community has to help but honestly It's not where I want it to be. No matter what I do... I still cannot get my throttle pedal to be smooth. I've dialed in my tune. Trims are in within 3% everywhere. Cams have been adjusted by adding 2 degrees starting with the intake.. Timing is advanced uniformly where needed. I've ran DI from .1 to .3... DI up until .3 is the sweet spot for an aggressive street tune. Adjusting torque requested tables so they are more linear. This helped tons with high RPM throttle sensitivity. I changed my throttle activation from 1.5 to 1%. That seemed to help too but I'm not to sure I have to test a different setups. Please any help is appreciated. I've tested many different theories and the ones on here have always worked out perfectly. I'm done with the dial in. Is there anything else I can do to "fine tune?"

12-05-2016, 12:38 AM	#3
phrosty Senior Member Join Date: Apr 2013 Drives: 2013 FR-S Location: Seattle Posts: 806 Thanks: 202 Thanked 320 Times in 199 Posts Mentioned: 18 Post(s) Tagged: 1 Thread(s)	Have you tried replacing foot? __________________ 2013 Whiteout 6AT FR-S \| Perrin Inlet Tube + 2.75" CAI \| OpenFlash Header \| P&L Catback \| 4.88 Final Drive \| Dialed in OFT 2.0x Stage 2 E85 \| 18x8 Enkei Raijin + 225/40 Michelin Pilot Super Sport \| 17x7 Stock + 215/45 Michelin X-Ice Xi-2

12-05-2016, 01:31 PM	#8
chas3wba0 Senior Member Join Date: Jul 2013 Drives: Yes Location: Bay Area, CA Posts: 1,052 Thanks: 1,629 Thanked 813 Times in 407 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Have you driven on the same tune for a at least a week without flashing? After flashing a new tune, it is normal for the throttle sensitivity to be off... usually takes a few drive cycles to get better. __________________ "If thy pleaſure be in Underſteere, thou art Weird." - Distraxi

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12-05-2016, 01:39 AM	#4
504 Senior Member Join Date: Feb 2013 Drives: 2014 86 GTS Location: Sydney, Australia Posts: 168 Thanks: 131 Thanked 85 Times in 57 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	I think alot of people including myself think that the on off throttle jerk is tune related, upgrade rear subframe bushings and you'll be laughing

12-05-2016, 04:09 AM	#5
aagun Senior Member Join Date: Nov 2012 Drives: 86 Location: uae Posts: 403 Thanks: 202 Thanked 67 Times in 56 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	nah is it custom or stock rom that u apply the change?

12-05-2016, 12:07 PM	#6
Nah Senior Member Join Date: Jan 2016 Drives: 2013 Scion Frs 6mt Location: Florida Posts: 234 Thanks: 85 Thanked 48 Times in 32 Posts Mentioned: 1 Post(s) Tagged: 2 Thread(s)	Custom tune using Wayne's definitions. Manual. I'm going to upgrade those bushing and get back to you guys with a B&A. What bushings did you go with? Basically it's just a jolt when just pressing the throttle when cruising to accelerating. Mainly in the 3-4k range.

12-05-2016, 12:08 PM	#7
Nah Senior Member Join Date: Jan 2016 Drives: 2013 Scion Frs 6mt Location: Florida Posts: 234 Thanks: 85 Thanked 48 Times in 32 Posts Mentioned: 1 Post(s) Tagged: 2 Thread(s)	my foots pretty big don't see a need to replace it...

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