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Old 01-27-2008, 04:43 PM   #1 (permalink)
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"Fly-By-Wire" Throttle Lag

Has anyone figured out how to eliminate the throttle response lag for the "Fly-By-Wire" throttles for the V6s?
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Old 01-27-2008, 04:57 PM   #2 (permalink)
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most who have installed an aftermarket cai, say they get better throttle responce. our stock intake is cool enough, but a bit rectrictive. and, it's probably only noticeable with manual trans...
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Old 01-27-2008, 04:59 PM   #3 (permalink)
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give it more gass lol. i never noticed any lag but i dont drive them on long trips just 3 mile test drives..
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Old 01-27-2008, 05:14 PM   #4 (permalink)
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Yes, I have a 6spd manual and it is very noticeable. I was hoping there was a solution to this by now.
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Old 01-27-2008, 05:55 PM   #5 (permalink)
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Sadly there will ALWAYS be some lag no matter what you do. There is no direct linkage to the throttle any more. It's done by computer.

I'm going to miss driving my '84 pos, at least I knew what was going to happen when I pressed the throttle.
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Old 01-29-2008, 11:56 PM   #6 (permalink)
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For everyone's information, I sent in a request to Toyota regarding the lag in the throttle response and got this a reply. I haven't tried it yet but thought I'd share it with everyone who wants to try it. Please, submit your results to this post if you do try this.

Here's what I got from Toyota:
The slight throttle lag you feel on your Tacoma is the engine computer
calculating throttle position for maximum performance and efficiency.
Currently Toyota does not have any TSB's out for the throttle lag. One
thing that may improve it some is to disconnect the battery for one
minute and drive the vehicle as you normally would for 50 miles. This
will pre program "learned" driving values into the computer and in some
instances improve the lag.
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Old 01-30-2008, 12:25 AM   #7 (permalink)
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Quote:
Originally Posted by mh808 View Post
Has anyone figured out how to eliminate the throttle response lag for the "Fly-By-Wire" throttles for the V6s?
Are you refering to just throttle input lag or the lag before the truck hits it's powerband (3.5Kish).

I am not a fan of "fly by wire", Some MFG's are better than others...but it is the way of the future
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Old 01-30-2008, 04:21 AM   #8 (permalink)
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The Tacoma is light years better than the Dakota's I had. I'd mash the pedal on those (02 and 06) and it was as though I was waiting for the hamster to get the wheel spinning faster before the trans would downshift to allow it to accelerate. They both had V8's too. Bordered on dangerous.
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Old 01-30-2008, 04:31 AM   #9 (permalink)
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who would own a dodge? just messin
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Old 01-30-2008, 05:33 AM   #10 (permalink)
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We just need to install some of those new bio-neural gell packs to increase response time from the computer. Coming to a store near you......
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Old 01-30-2008, 05:45 AM   #11 (permalink)
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You know, I don't think I have ever noticed this. Come to think about it, I remember telling myself I though that vehicle was quick to respond when I need to pass or takign off from a red light. Than again it seems I can't help but love my Tacoma (or I did before it was stolen) so perhaps I am biased
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Old 01-30-2008, 06:08 AM   #12 (permalink)
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Quote:
Originally Posted by wingysataday View Post
who would own a dodge? just messin
Funny you mention that....

I had a Dodge Ram that also had the throttle by wire. It had LAG also.....
I think all vehicles with this system have lag. With a 5.7L V8 and you step on the gas hard - you EXPECT TO GO SOMEWHERE immediately.... Some days it'd be good and other days (when you especially needed it), it'd lag big time. Besides that, you'd press the pedal down a good 1 inch or more and nothing would happen - then suddenly it'd kick in with what I would consider, too much gas. It wasn't sensitive enough.

The Dodge was nice that you could relearn/recalibrate (in the computer) the position (the *throw*) of the gas pedal. Technically - you'd just put the key into the ON position, step on the gas pedal to the floor and hold for 5 seconds and turn then back to OFF.

I used to play with the calibration and see what would happen. I'd only press the pedal halfway or less (giving it less *throw*). This made the pedal more sensitive as the throw was much shorter. It also helped with throttle lag. For towing and other long distance stuff - I'd always put it back to normal.

Makes me wonder if you can recalibrate the Toyota pedal or not??? I haven't seen or heard anything about it.....
Wonder if its worth a call to a dealer and talk to a master tech....
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Last edited by Janster; 01-30-2008 at 06:10 AM.
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Old 01-30-2008, 08:06 AM   #13 (permalink)
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I didn't really notice the lag ('07 2.7) until this thread popped up and I tried it. Sure enough, there is a slight lag. Can't say as it bothers me though. I've gotten used to the lag in all my vehicles (Ford, Honda, etc.). If I anticipate needing to get a good jump, I'll floor it a bit (1/2 second or so) early with my other foot firmly on the brake. Then get off the brake when it's time.
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Old 01-30-2008, 08:57 AM   #14 (permalink)
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Jeez, I don't know what lag you're talking about! All of you have a manual tranny? Our Highlander has a big lag (and I remember my parents' '85 Camry had a lag which had nothing to do with drive-by-wire!), but my truck has no lag whatsoever.
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Old 01-30-2008, 09:41 AM   #15 (permalink)
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Quote:
Originally Posted by 05Moose View Post
Jeez, I don't know what lag you're talking about! All of you have a manual tranny? Our Highlander has a big lag (and I remember my parents' '85 Camry had a lag which had nothing to do with drive-by-wire!), but my truck has no lag whatsoever.
Stomp on the gas (hard) and see how long it takes to respond.

I have an Auto. This winter with the colder air - it hasn't been as noticable. It's been pretty responsive. I kinda got used to it and it doesn't bother me. Unless of course, I NEED to step on the gas to move quickly in traffic...then, I notice it.

So perhaps the lag has to do with the computer compensating too slowly for certain conditions....Just guessing. Why else would the lag be less noticable in the winter ? Or my truck is just weird...
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