Toyota Throttle Electronics Easily Confused
in [Technical]
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From: Clive on 27 Feb 2010 20:23 In message <npfjo59dniu8nvf3jp3u36fcele8bfeee5(a)4ax.com>, Ashton Crusher <demi(a)moore.net> writes >. Other then sticking pedals on mechanical >linkage, and usually after someone has monkeyed with it, I've never >heard of UA on a true manually controlled throttle, Somewhere on Youtube is a film of an Explorer driving up Redciffe Hill in Bristol ( England) accelerating, when going over the brow of the hill a line of traffic is seen waiting to approach the roundabout, the driver pulls off the road to the left and straight into a tree in the garden of peace, killing the driver. The police take 15 minutes to ascertain the cause, it's the cruise control cable which is over-riding the throttle cable keeping both throats of the carburettor wide open. -- Clive
From: Vic Smith on 27 Feb 2010 20:34 On Sat, 27 Feb 2010 17:59:49 -0700, Ashton Crusher <demi(a)moore.net> wrote: > >My memory is fuzzy, it's been a while since the Audi 5000 UA issue, >but as I recall it was the first generation of Audi with an idle air >bypass valve, or some such, and as such it allowed the computer to >control, to a limited extend, the "throttle". The Audi's mainly did >their UA at low speeds/stops which always made me think it was tied >into the idle bypass. Other then sticking pedals on mechanical >linkage, and usually after someone has monkeyed with it, I've never >heard of UA on a true manually controlled throttle, other then simply >stepping on the wrong pedal which no doubt does sometimes happen. As I recall they pinned it on the pedal config and changed that. I didn't follow it closely, though I think the mess was initiated here in Chicago when a woman came roaring out of a parking garage and ran over some people. Never cared about getting an Audi anyway. And I probably will never own a Toyota, but this is much bigger news so it's hard to not know something about it. Beside that, it's got me looking into what they're doing with this drive by wire stuff, which isn't Toyota specific. And I notice the EPS problems aren't limited to Toyota, and there are a lot of Cobalt complaints. My wife wanted a Cobalt as her next car, and now maybe I can talk her into something else without electronic control into throttle and steering. If such a beast will even exist when I'm ready. --Vic
From: Ashton Crusher on 27 Feb 2010 21:00 On Sat, 27 Feb 2010 19:34:01 -0600, Vic Smith <thismailautodeleted(a)comcast.net> wrote: >On Sat, 27 Feb 2010 17:59:49 -0700, Ashton Crusher <demi(a)moore.net> >wrote: > > >> >>My memory is fuzzy, it's been a while since the Audi 5000 UA issue, >>but as I recall it was the first generation of Audi with an idle air >>bypass valve, or some such, and as such it allowed the computer to >>control, to a limited extend, the "throttle". The Audi's mainly did >>their UA at low speeds/stops which always made me think it was tied >>into the idle bypass. Other then sticking pedals on mechanical >>linkage, and usually after someone has monkeyed with it, I've never >>heard of UA on a true manually controlled throttle, other then simply >>stepping on the wrong pedal which no doubt does sometimes happen. > >As I recall they pinned it on the pedal config and changed that. >I didn't follow it closely, though I think the mess was initiated here >in Chicago when a woman came roaring out of a parking garage and ran >over some people. >Never cared about getting an Audi anyway. >And I probably will never own a Toyota, but this is much bigger news >so it's hard to not know something about it. >Beside that, it's got me looking into what they're doing with this >drive by wire stuff, which isn't Toyota specific. >And I notice the EPS problems aren't limited to Toyota, and there are >a lot of Cobalt complaints. My wife wanted a Cobalt as her next car, >and now maybe I can talk her into something else without electronic >control into throttle and steering. >If such a beast will even exist when I'm ready. > >--Vic ultimately I think we will all be in electric cars, even performance cars. So most likely everything will be electrically driven.
From: Hachiroku ハチロク on 27 Feb 2010 21:04 On Sat, 27 Feb 2010 17:59:49 -0700, Ashton Crusher wrote: > Other then sticking pedals on mechanical linkage, and usually after > someone has monkeyed with it, I've never heard of UA on a true manually > controlled throttle, Oh, WeLLLLLLL, I do declare, /I/ have! If I remember correctly, I believe it can, and has been attributed to rusted throttle cables. And, would you believe, it happens a bit here in the Northeast. And your logic is fuzzy as well.
From: Clive on 28 Feb 2010 07:15
In message <b5hjo59g9hs69ckb05titb7f4ivrjnac5v(a)4ax.com>, Vic Smith <thismailautodeleted(a)comcast.net> writes > My wife wanted a Cobalt as her next car, >and now maybe I can talk her into something else without electronic >control into throttle and steering. I wouldn't have thought that any new car with cable control would pass emissions regulations. -- Clive |