General MINI Talk Shared experiences, motoring minutes, and other general MINI-related discussion that applies to all MINIs, regardless of model, year or trim.
Sponsored by:
Sponsored by:

Throttle Pedal Sticking?

Thread Tools
 
Search this Thread
 
Old Feb 23, 2010 | 02:01 PM
  #51  
Bigshot's Avatar
Bigshot
6th Gear
Joined: Jul 2008
Posts: 1,513
Likes: 2
Ah Kemo.......he could still have put the car in neutral or/and slammed on the brakes.
The phone call changes nothing.
 
Reply
Old Feb 23, 2010 | 02:14 PM
  #52  
kemo's Avatar
kemo
3rd Gear
Joined: Sep 2009
Posts: 266
Likes: 4
From: New Brunswick, Canada
Bigshot; Ah Kemo.......he could still have put the car in neutral or/and slammed on the brakes.
The phone call changes nothing.
Neutral...yes. But since he was on the highway and we "assume" doing at least 60 mph when the peddle stuck and started to accelerate up to the 120 mph he was going when the accident happened, neutral wouldn't have done much if he was coming up on the intersection where this happened.

You mentioned brakes again?...........he had no brakes.
 

Last edited by kemo; Feb 23, 2010 at 04:04 PM.
Reply
Old Feb 23, 2010 | 06:02 PM
  #53  
Cadenza's Avatar
Cadenza
5th Gear
iTrader: (1)
Joined: Mar 2009
Posts: 936
Likes: 5
From: Poggibonsi
During the hearing today, the CEO of Toyota admitted that 2004 Camrys had issues with the torque converter lock-up in conjunction with bugs in the ECU & TCM programming. Since the gas pedal (throttle-by-wire) and the shifting of gears (automatics) are all controlled by the ECU & TCM via feedback from a various of sensors, you can see how things can go wrong. The gas pedal can be released and the transmission shifted to Neutral. But if the program doesn't recognize those inputs, you're in one heck of a joy ride.

It's like Windows refusing to execute a command... time to reboot.
 
Reply
Old Feb 23, 2010 | 07:59 PM
  #54  
kemo's Avatar
kemo
3rd Gear
Joined: Sep 2009
Posts: 266
Likes: 4
From: New Brunswick, Canada
Originally Posted by Cadenza
During the hearing today, the CEO of Toyota admitted that 2004 Camrys had issues with the torque converter lock-up in conjunction with bugs in the ECU & TCM programming. Since the gas pedal (throttle-by-wire) and the shifting of gears (automatics) are all controlled by the ECU & TCM via feedback from a various of sensors, you can see how things can go wrong. The gas pedal can be released and the transmission shifted to Neutral. But if the program doesn't recognize those inputs, you're in one heck of a joy ride.

It's like Windows refusing to execute a command... time to reboot.
Sadly, isn't that the truth
 
Reply
Old Feb 24, 2010 | 07:07 AM
  #55  
Bigshot's Avatar
Bigshot
6th Gear
Joined: Jul 2008
Posts: 1,513
Likes: 2
The brakes will still work, just with no vacuum assist thus a very hard pedal.

How long does it take to accelerate from 60-100mph.....? A lot longer than the call was.

There is still a mechanical connection between the gear lever and the auto transmission. No ecu involved with that or the brakes......so no matter what the ecu might think you still have control over those functions.
 
Reply
Old Feb 24, 2010 | 07:52 AM
  #56  
MINIdave's Avatar
MINIdave
6th Gear
15 Year Member
Joined: May 2007
Posts: 3,790
Likes: 10
From: Kansas City
How is it the car's fault if he floored it to pass someone, and an extra (non-factory) floor mat got caught under the accelerator pedal?
 
Reply
Old Feb 24, 2010 | 09:35 AM
  #57  
firetruck41's Avatar
firetruck41
2nd Gear
Joined: Jan 2010
Posts: 57
Likes: 3
From: Camas, WA
Originally Posted by Bigshot
There is still a mechanical connection between the gear lever and the auto transmission. No ecu involved with that or the brakes......so no matter what the ecu might think you still have control over those functions.
Do you know this for a fact? I am sure that there are automatic transmissions that are "drive by wire", so to speak, ie. no mechanical connection. Not sure about the Toyotas in question though.
 
Reply
Old Feb 24, 2010 | 01:32 PM
  #58  
Cadenza's Avatar
Cadenza
5th Gear
iTrader: (1)
Joined: Mar 2009
Posts: 936
Likes: 5
From: Poggibonsi
Not sure about every Toyota/Lexus vehicles in the recalls but "Shift-by-wire" has been in use in Priuses since 2001. Torque converter lock-up is controlled electronically.

According to the CHP recording of the 911 call in the Saylor (San Diego, Lexus ES350) incident, there was NO brake!

Caller: “We're going 120 (mph)! Mission Gorge! We're in trouble – we can't – there's no brakes, MissionGorge ... end freeway half mile.”

http://legacy.signonsandiego.com/new...dia/car911.mp3

As for using the brake w/o vacuum boost, the only way to know how much force is required is to test out another vehicle of the same model/year.

Edit: Gonna test this on my Mini.
 

Last edited by Cadenza; Feb 24, 2010 at 02:38 PM.
Reply
Old Feb 24, 2010 | 04:36 PM
  #59  
firetruck41's Avatar
firetruck41
2nd Gear
Joined: Jan 2010
Posts: 57
Likes: 3
From: Camas, WA
I doubt the brakes were disabled (electronically), I think there is still a mechanical connection there, though they may have been rendered virtually useless by a long application which heated them up, or were just overpowered by the engine at those high speeds.
 
Reply
Old Feb 25, 2010 | 07:43 AM
  #60  
Bigshot's Avatar
Bigshot
6th Gear
Joined: Jul 2008
Posts: 1,513
Likes: 2
Originally Posted by Cadenza
Not sure about every Toyota/Lexus vehicles in the recalls but "Shift-by-wire" has been in use in Priuses since 2001. Torque converter lock-up is controlled electronically.

According to the CHP recording of the 911 call in the Saylor (San Diego, Lexus ES350) incident, there was NO brake!

Caller: “We're going 120 (mph)! Mission Gorge! We're in trouble – we can't – there's no brakes, MissionGorge ... end freeway half mile.”

http://legacy.signonsandiego.com/new...dia/car911.mp3

As for using the brake w/o vacuum boost, the only way to know how much force is required is to test out another vehicle of the same model/year.

Edit: Gonna test this on my Mini.
OK, obviously you aren't going to listen to reason so no more talk of the accident......

If you had read any of the posts you would have seen that the MINI has a throttle cut-off if the brakes are applied hard with the accelerator pressed. So the test on a MINI can't be done.
 
Reply
Old Feb 25, 2010 | 08:09 AM
  #61  
lhoboy's Avatar
lhoboy
6th Gear
20 Year Member
Joined: Jan 2005
Posts: 2,223
Likes: 0
From: DC
The throttle on my MINI occassionally will stick in the wide open position. The problem usually resolves itself when the driver is removed from the vehicle.
 
Reply
Old Feb 25, 2010 | 08:19 AM
  #62  
Bigshot's Avatar
Bigshot
6th Gear
Joined: Jul 2008
Posts: 1,513
Likes: 2
 
Reply
Old Feb 25, 2010 | 09:32 AM
  #63  
Cadenza's Avatar
Cadenza
5th Gear
iTrader: (1)
Joined: Mar 2009
Posts: 936
Likes: 5
From: Poggibonsi
Originally Posted by Bigshot
OK, obviously you aren't going to listen to reason so no more talk of the accident......

If you had read any of the posts you would have seen that the MINI has a throttle cut-off if the brakes are applied hard with the accelerator pressed. So the test on a MINI can't be done.
Yep... reason killed the cop. That's the best!

Try reading the post again. I was referring to testing the brake w/o vacuum assist... engine off.
 
Reply
Old Feb 25, 2010 | 09:45 AM
  #64  
chaseabryant's Avatar
chaseabryant
4th Gear
iTrader: (2)
Joined: Jun 2007
Posts: 564
Likes: 0
From: Boston, MA
I didn't see it brought up, but did anybody see where an SIUC professor was able to incite a fault (short circuiting that is very possible because of corrosion etc.) that causes the car to accelerate as described by those in the crashes, and does not show a fault in the onboard diagnostics?



more information from abc.com:
http://abcnews.go.com/Blotter/toyota...d=ESPNheadline

Interesting conversation where I first saw it at GMInsidenews.com
http://www.gminsidenews.com/forums/f...toyotas-89313/

Pretty convincing in you ask me. I think that the floor mat issue is an easy scapegoat for Toyota and that is it.

-Chase
 

Last edited by chaseabryant; Feb 25, 2010 at 09:52 AM.
Reply
Old Feb 25, 2010 | 09:57 AM
  #65  
Cadenza's Avatar
Cadenza
5th Gear
iTrader: (1)
Joined: Mar 2009
Posts: 936
Likes: 5
From: Poggibonsi
Originally Posted by chaseabryant
Pretty convincing in you ask me. I think that the floor mat issue is an easy scapegoat for Toyota and that is it.

-Chase
Toyota has been denying electronics and programming 'cause it opens up a bigger can of worms.
 
Reply
Old Feb 25, 2010 | 10:20 AM
  #66  
firetruck41's Avatar
firetruck41
2nd Gear
Joined: Jan 2010
Posts: 57
Likes: 3
From: Camas, WA
It would not be hard to create a fault that would not show up with OBD. Just emulate the same signal as the accelerator sensor you are replacing, and make it show the throttle is calling for WOT. I'm sure you could do it on most make/model of vehicles, that doesn't mean it is a likely fault to occur in the real world. In fact it is very unlikely that you will be driving down the road and accidentally build a circuit emulating the accelerator sensor and splice it in to the wiring harness...
 
Reply
Old Feb 25, 2010 | 11:27 AM
  #67  
CrazyIvan's Avatar
CrazyIvan
3rd Gear
iTrader: (1)
Joined: Jan 2009
Posts: 264
Likes: 0
From: Ohio
Was an issue on the e36 bmws but haven't heard of anything on a mini
 
Reply
Old Feb 25, 2010 | 12:32 PM
  #68  
kemo's Avatar
kemo
3rd Gear
Joined: Sep 2009
Posts: 266
Likes: 4
From: New Brunswick, Canada
Great video and information chasebryant. Granted, this is a recreated lab experiment, but it proves that it can easily be more than floor mats and a mechanical part. Some auto analysts have been saying for months that there's something wrong with the computer.

Originally Posted by chaseabryant
I didn't see it brought up, but did anybody see where an SIUC professor was able to incite a fault (short circuiting that is very possible because of corrosion etc.) that causes the car to accelerate as described by those in the crashes, and does not show a fault in the onboard diagnostics?



more information from abc.com:
http://abcnews.go.com/Blotter/toyota...d=ESPNheadline

Interesting conversation where I first saw it at GMInsidenews.com
http://www.gminsidenews.com/forums/f...toyotas-89313/

Pretty convincing in you ask me. I think that the floor mat issue is an easy scapegoat for Toyota and that is it.

-Chase
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
drrigg
R50/R53 :: Hatch Talk (2002-2006)
6
May 27, 2022 03:31 AM
Doc Pain
R56 :: Hatch Talk (2007+)
4
Mar 10, 2021 04:50 AM
scfiveo
Stock Problems/Issues
16
Sep 27, 2019 02:27 PM
eliseo1981
MINI Parts for Sale
4
Nov 2, 2015 11:24 AM
Wombat Pie
Navigation/Audio
7
Oct 5, 2015 08:00 PM




All times are GMT -7. The time now is 11:00 PM.