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06-01-2012, 08:22 AM | #1 |
Drives: Yaris 2008 Join Date: Jan 2012
Location: EmptyHell(mtl)
Posts: 43
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Cable throttle body
As the title says, me and one of my friend, we were talking about how i could modify the yarii, He was thinking about putting the cable throttle from a 2000+ 1nz echo, instead of the electronic one we already have.
He's he right? would it make any sens? Wouldnt it make the Ecu go crazy? Ive tried to find anything on that subject but i didnt find nothing.If it already had been talked about please send me to the thread. Thx guys |
06-01-2012, 09:08 AM | #2 |
vroom vroom
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It's been done, 2 cars that I know of (mine and Garm's (aka cali yaris)), but in conjunction with different ECUs. I somehow doubt that you could do it on the stock ECU as there is a feedback system that will most likely throw a CEL...
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06-01-2012, 09:43 AM | #3 |
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Assuming this project is on a car with a stock ECU -- This means you'd also be replacing the electronic gas pedal, so that signal would no longer be sent to the ECU. Problematic.
But more importantly, this mod wouldn't make any more power. So besides it being a cool idea, what would be the purpose?
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06-01-2012, 09:55 AM | #4 |
Drives: Yaris Sedan 2009 Join Date: Sep 2010
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what do you mean Garm...this mod wouldn't make any more power ?
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06-01-2012, 10:11 AM | #5 |
they are asking about changing from the drive by wire to going to a cable driven. the throttle body is the same (I think)
this is different than converting to the 1zz (or corolla) throttle body. I think the OP is saying to use the same size (1nz) throttle body. |
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06-01-2012, 10:43 AM | #6 |
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What does it add to the car ? It more fun to drive ?
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06-01-2012, 11:12 AM | #7 |
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It might eliminate the lag from the stock electronic throttle -- I love the cable throttle in my car. But it's a pretty big project for such a small result on a more or less stock car.
A throttle controller like the ones we sell would be plug 'n play and do the same thing.
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06-01-2012, 11:21 AM | #8 | |
Drives: Yaris Sedan 2009 Join Date: Sep 2010
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Quote:
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Interior:ALL red, black roof Exterior:RTX scorpion painted GOLD, side and rear visor, oem spoiler, MI mesh grill, Hella supertone horn, RS badge, Vios badge, CF pillar, Led mirror cover, fog light HID 3000k, Projector retrofit HID 8000K Performance :MI CrankPulley, Tein springs, UR and TRD bar, TURBO IN PROGRESS Audio : Pionner DEH-80PRS, HAT L1V2, PowerBass 1100.5X 5 channel amp |
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06-02-2012, 07:11 AM | #9 |
Drives: Yaris 2008 Join Date: Jan 2012
Location: EmptyHell(mtl)
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Garm: The main idea was to see what we could do for the "lag" so he told me he had a 2000+ 1nz that was cable throttle and it would be better and Yes garm it was ment to go on my stock ECU.
BEEF: Your right Is there any write up or any DIY on this, i highly doubt but still worth asking! thx guys for such fast answers! |
06-02-2012, 07:39 AM | #10 |
The '04-'06 xA uses a cable operated throttle as well.
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06-02-2012, 08:38 AM | #11 |
2ZR swap. DO IT! Ask how!
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The bigger problem is that the throttle position sensor is different. I think CTScott has done some analysis of the electrical signals on the drive-by-wire (DBW) version but wasn't able to make much progress.
I disassembled a DBW throttle body and wasn't able to make sense of the electronics inside. There's a pair of magnets and a coil that determines open/closed loop operation, and that might also indicate the position of the valve. Beyond that, I can't really say how it works. |
06-02-2012, 09:20 AM | #12 |
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There are two redundant Hall effect sensors in the DBW pedal. Fooling the ECM with that wouldn't be difficult. On the other side the ECM drives the servo on the throttle body based on the pedal signals and looks for the position to match what it is driving. So, replacing all of that with a cable system and adding the necessary electronics to fool the ECM would really not be worth it, as the aftermarket throttle controllers for the DBW do a good job of reducing the lag and are plug and play.
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06-02-2012, 11:05 AM | #13 |
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Here is the most reasonably priced plug 'n play throttle controller out now.
I have a unit, but the Yaris-specific harness that goes with it is on back order: http://www.weapon-r.com/products/196...ontroller-unit Blitz also makes one if you want to spend twice as much.
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06-02-2012, 11:09 AM | #14 |
vroom vroom
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^definitely a less headache-inducing solution...
CTScott, what if you were to somehow keep the electronic throttle just hanging in free air and somehow still receiving a signal from the pedal? Then it would report *correct* values to the ECU, even though the actual throttle being used is the cabled one? Far too complicated a solution, but probably the only way it would work with the stock ECU!
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06-02-2012, 11:31 AM | #15 | |
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Quote:
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06-02-2012, 01:02 PM | #16 | |
play every day
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Quote:
I didn't know anything like that even existed. Our 2012 is hypersensitive right at the beginning of the pedal stroke which makes it difficult to modulate the rpms when letting out the clutch to move from a standing start. The tendency is to overrev the engine. While I'm learning to be mindful of this sensitivity, I really miss the linear control of a cable. Would an ithrottle compensate for this? |
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06-02-2012, 02:14 PM | #17 |
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^ Yes, that is exactly the kind of thing it would help with. I'm not sure how many modes it has, but usually there are several available so you can choose the one that enhances your driving style the most.
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