For you Throttle By Wire LS's

How come its called throttle by wire. Whats the gen 1 called then? doesn;t the gen 1 have an actual wire that is connected directly from the pedal to the throttle. Thus throttle by wire?
 
the Gen 1 doesn't have Throttle by Wire. Different system which is why it's very easy for us Gen1s to Revv the engine and do burnouts :-D
 
Hmm.... I'm guessing the car would throw a code as soon as the throttle opens more than what the pcm told it to.
Otherwise you could just get rid of the etc and hook up a real cable to the throttle. Or, maybe the pcm doesn't care and you can do that already? Beats me! :)
 
they said the computer should'nt feel much to mess with the fuel systems :P I dunno...could be a placebo effect like those 50+ HP and 30+ MPG chips on ebay :P
 
Oh if this attaches to the gas pedal signal, maybe it's just like when you press the pedal down say, 20%, it ups it so it's like you're pressing it down 30% of the way. That wouldn't screw up the pcm. But it also doesn't make the car any faster lol
 
I'm just guessing here but I think the only way this thing can effectively improve performance is not by amplifing the signal, but by getting it from point A to B faster. Just like with wiring your speakers. The closer you are to matching the impidance of the wire to the impidance of the componant, the less resistance you have. Making for a more efficiant conductor. Allowing the signal to travel faster and reducing lag.
 
Alax7 said:
How come its called throttle by wire. Whats the gen 1 called then? doesn;t the gen 1 have an actual wire that is connected directly from the pedal to the throttle. Thus throttle by wire?
Click to expand...

Just in case you are serious...

Gen I have traditional, direct throttle control. A mechanical cable links the gas pedal and the throttle together. Movement of the gas pedal always causes the same movement of the throttle.

Gen II has Electronic Throttle Control, or throttle by [electrical] wire. The gas pedal is connected only to an electronic potentiometer (two actually). This tells the computer what position you are holding the gas pedal at. The actual throttle on the engine is then controlled by an electric motor that is controlled by the computer. When you press on the gas pedal, the computer decides the best combination of transmission gear and throttle position to give you the power you are requesting. Why do this? Well, you eliminate the possibility of a stuck throttle cable, you no longer need an IAC (just use the throttle to control idle), the rev limiter no longer has to cut fuel to limit revs, and so on. Of course, the real reason is that it enables computer strategies that increase gas mileage. That's why almost all cars made now have ETC.
 
drag214 said:
I'm just guessing here but I think the only way this thing can effectively improve performance is not by amplifing the signal, but by getting it from point A to B faster. Just like with wiring your speakers. The closer you are to matching the impidance of the wire to the impidance of the componant, the less resistance you have. Making for a more efficiant conductor. Allowing the signal to travel faster and reducing lag.
Click to expand...

No, of course that's not it. The signaling already happens faster than anyone can detect. (Also, this is digital signaling, not analog, so the impedance and amplifying stuff is nonsense.) The issue is that the engine computer purposely delays the throttle opening at various times/conditions as part of its gas saving strategy. This is all to meet the government required mileage figures. It has nothing to do with any electronic problems.

BTW, it's spelled amplifying, impedance, component, and efficient.
 
Lincoln ave said:
And Joe the spellchecker has spoken.
Click to expand...

Okay, so it is a trivial thing to protest, but bad spelling and grammar do make some posts very difficult to read, for at least some of us. I'm not the world's best at it either, but I do at least make an effort...
 
joegr said:
Okay, so it is a trivial thing to protest, but bad spelling and grammar do make some posts very difficult to read, for at least some of us. I'm not the world's best at it either, but I do at least make an effort...
Click to expand...

+1

Especially with a built in spell checker like this site and all you have to do is click the button.
 
joegr said:
No, of course that's not it.
the impedance and amplifying stuff is nonsense.)
BTW, it's spelled amplifying, impedance, component, and efficient.
Click to expand...

Thanx for the input but like I mentioned in the beginning of the post, I was taking a guess at how the component actualy works.
Yeah, I know my spelling sucks, but you don't have to be such a prick about.
Otherwise thanks for the input. I'll work on my spelling.
 
drag214 said:
... but you don't have to be such a prick about.
Click to expand...

I don't have to be many of things that I am, maybe I just want to.

Okay, I'll try one last time to make my point, and then move on.

People post messages and questions to this site because they want input from others on the site. At least some of us are less likely to read the post and respond to it if it is full of bad spelling, bad grammar, use of "there" instead of "their" and so on.

BTW, "... but you don't have to be a prick about." should end with "it."
 
joegr said:
Just in case you are serious...

Gen I have traditional, direct throttle control. A mechanical cable links the gas pedal and the throttle together. Movement of the gas pedal always causes the same movement of the throttle.

Gen II has Electronic Throttle Control, or throttle by [electrical] wire. The gas pedal is connected only to an electronic potentiometer (two actually). This tells the computer what position you are holding the gas pedal at. The actual throttle on the engine is then controlled by an electric motor that is controlled by the computer. When you press on the gas pedal, the computer decides the best combination of transmission gear and throttle position to give you the power you are requesting. Why do this? Well, you eliminate the possibility of a stuck throttle cable, you no longer need an IAC (just use the throttle to control idle), the rev limiter no longer has to cut fuel to limit revs, and so on. Of course, the real reason is that it enables computer strategies that increase gas mileage. That's why almost all cars made now have ETC.
Click to expand...


I was serious but not on how it works. I know how it works I just didnt get why you woudn't call the gen 1, which is connected directly to the pedal by a wire, throttle by wire. But instead call the gen 2 computerised one throttle by wire. But i guess its cause of the "electrical" wire. They should call throttle by electrical wire then.
 
If they can do that, and it actually works, then this would be a great mod!
 
Alax7 said:
... But i guess its cause of the "electrical" wire. They should call throttle by electrical wire then.
Click to expand...

Actually, I think "they" call it ETC. I think that the phrase "throttle by wire" comes from the phrase "fly by wire" that is used by the aircraft industry. Even there, it could be confused. Traditional planes had the control stick and the rudder pedals linked to the control surfaces by actual steel cables. The "fly by wire" planes eliminated the steel cables and used electrical wires to carry signals from the controls to electric motors or electric hydraulic valves that would then control the control surfaces.
 
I'm pretty sure you can eliminate any lag using an SCT tuner. Not only are they readily available, but they are far more useful than just adjusting the TBW.
 
If your battery dies or you disconnect it the tune wont get deleted right? Since you're talkinbg about sct
 
n8bachelor said:
I'm pretty sure you can eliminate any lag using an SCT tuner. Not only are they readily available, but they are far more useful than just adjusting the TBW.
Click to expand...

+1

Made a big difference in my throttle response among other improvements and no to the dead battery/disconnect losing the tune either custom or stock.
 
You must log in or register to reply here.

Members online

No members online now.
Total: 765 (members: 0, guests: 765)
Back
Top