super fast acceleration - Toyota Yaris Forums

Dulcimer42 · 12-28-2015, 04:50 PM

Buying a used 2009 Yaris hatchback tomorrow. It looks good, drives good, brakes are good. Only one thing. From a stop, you can barely touch the accelerator and it TAKES OFF! My husband thinks it is idling too fast. Buying for the daughter and fear that she wont be extra careful, as she would need to. What would cause this? On the road, it acts fine

Kar98 · 12-28-2015, 07:21 PM

What constitutes "too fast"?

nortonfb · 12-28-2015, 07:41 PM

A zippy yaris? Really?

invader166 · 12-29-2015, 12:05 AM

Haha, most people tend to complain of the opposite. lol

In all seriousness though, this car has a drive-by-wire throttle controller, not a regular cable throttle control. As a result, there is an inherent delay between the moment when you press the accelerator and when the computer receives the signal to accelerate.
Aside from modifying the system, all you can really do is just be gentle with the pedal to prevent this "super fast" acceleration.

MadMax · 12-29-2015, 10:38 AM

What do you normally drive that would make a Yaris seem "zippy?!?" Even going from my Jeep to my Yaris it doesn't really feel that way... :D

LTHatch · 12-29-2015, 03:04 PM

Agreed with Invader166, it takes some time to get used to the Yaris dead accel pedal. Especially if your previous vehicle was a throttle cable, you don't get the same feel or response(the lag invader166 was talking about) from the Yaris DBW so you tend to step further on it and surprise acceleration happens.

Kalispel · 12-29-2015, 03:13 PM

Quote:

Originally Posted by LTHatch

Agreed with Invader166, it takes some time to get used to the Yaris dead accel pedal. Especially if your previous vehicle was a throttle cable, you don't get the same feel or response(the lag invader166 was talking about) from the Yaris DBW so you tend to step further on it and surprise acceleration happens.

Yep. It took me a few weeks to adjust from the older-school accelerator pedal on my 2000 Honda Accord to the newer, touchier Yaris one. Also, it's a more difficult adjustment period if the Yaris is a manual instead of an automatic (prepare for a few stalls, lol). I still have to be extra careful when wearing my skechers boots versus my dress shoes and such, due to the lack of tactile feedback from the pedals when wearing heavier footwear - meaning that I am more likely to unintentionally give it more gas initially when wearing the boots.

Dark Paw · 01-04-2016, 10:48 PM

I dont feel the delay that you guys speak of. In contrast my car is very responsive. Compared to my Camry that used a cable. Then again I drive a JDM Vitz RS so idk if that makes a diff

Sent from my SM-G850F using Tapatalk

Bluevitz-rs · 01-05-2016, 08:54 AM

Check to see if there is a box connected to the accelerator pedal.

kevinj93 · 01-06-2016, 10:38 PM

Yes, my 2012 Australian Spec 1.3L has the same touchy throttle response from Idle. This appears to be normal behaviour for many small cars now, as I drove a Holden (same as US Chevrolet) Cruze a few months ago (1.6L Turbo) and it was even touchier.

After a few days you will adjust to the immediate throttle response. I now find my other car (2014 Toyota Aurion) feels unresponsive off the line by comparison.

12-28-2015, 04:50 PM	#1
Dulcimer42 Drives: 2009 toyota yaris hatchback Join Date: Dec 2015 Location: indiana Posts: 2	super fast acceleration Buying a used 2009 Yaris hatchback tomorrow. It looks good, drives good, brakes are good. Only one thing. From a stop, you can barely touch the accelerator and it TAKES OFF! My husband thinks it is idling too fast. Buying for the daughter and fear that she wont be extra careful, as she would need to. What would cause this? On the road, it acts fine

12-29-2015, 12:05 AM	#4
invader166 Pumpman Drives: 2019 Kia Soul EV Base Join Date: Dec 2014 Location: Langley, BC Posts: 434	Haha, most people tend to complain of the opposite. lol In all seriousness though, this car has a drive-by-wire throttle controller, not a regular cable throttle control. As a result, there is an inherent delay between the moment when you press the accelerator and when the computer receives the signal to accelerate. Aside from modifying the system, all you can really do is just be gentle with the pedal to prevent this "super fast" acceleration. __________________ "I would rather loose by a mile in a car I built myself, then win by an inch in a car that was built for me." - Moog

12-29-2015, 10:38 AM	#5
MadMax Drives: 2008 Yaris Liftback (Sprocket) Join Date: Oct 2008 Location: San Antonio, Texas! Posts: 2,799	What do you normally drive that would make a Yaris seem "zippy?!?" Even going from my Jeep to my Yaris it doesn't really feel that way... :D __________________

12-28-2015, 07:21 PM	#2
Kar98 Drives: 2011 Scion tC Join Date: Jul 2012 Location: DFW Posts: 651	What constitutes "too fast"?

12-28-2015, 07:41 PM	#3
nortonfb Drives: 2007 Join Date: Feb 2014 Location: motown Posts: 339	A zippy yaris? Really?

12-29-2015, 03:04 PM	#6
LTHatch Drives: 2013 Yaris Hatchback L Join Date: May 2013 Location: Newark NJ Posts: 229	Agreed with Invader166, it takes some time to get used to the Yaris dead accel pedal. Especially if your previous vehicle was a throttle cable, you don't get the same feel or response(the lag invader166 was talking about) from the Yaris DBW so you tend to step further on it and surprise acceleration happens.

01-04-2016, 10:48 PM	#8
Dark Paw Drives: 2006 Toyota Vitz RS. 5spd. Join Date: Feb 2014 Location: Jamaica Posts: 22	I dont feel the delay that you guys speak of. In contrast my car is very responsive. Compared to my Camry that used a cable. Then again I drive a JDM Vitz RS so idk if that makes a diff Sent from my SM-G850F using Tapatalk

01-05-2016, 08:54 AM	#9
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	Check to see if there is a box connected to the accelerator pedal.

01-06-2016, 10:38 PM	#10
kevinj93 Drives: 2013 NCP130 Join Date: Nov 2015 Location: Sydney, Australia Posts: 378	Yes, my 2012 Australian Spec 1.3L has the same touchy throttle response from Idle. This appears to be normal behaviour for many small cars now, as I drove a Holden (same as US Chevrolet) Cruze a few months ago (1.6L Turbo) and it was even touchier. After a few days you will adjust to the immediate throttle response. I now find my other car (2014 Toyota Aurion) feels unresponsive off the line by comparison.