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...

 

give it more gass lol. i never noticed any lag but i dont drive them on long trips just 3 mile test drives..

 

Yes, I have a 6spd manual and it is very noticeable. I was hoping there was a solution to this by now.

 

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.

 

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.

 

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

 

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.

 

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....

 

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......

 

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

 

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.

 

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...:naughty:

 

When shifting from 4th to 5th on my 2005 2.7 the engine actually revs up momentarily even though I am off the throttle. It is somewhat annoying.

 

For everyone's info:

I've tried what the dealer suggested and noticed a significant reduction in the lag time. It didn't eliminate it completely but it decreased the delay before the RPMs would start to increase.

My next project is to develop a way to install a mechanical throttle linkage to get instantaneous throttle response.

 

Okay boys (& girls), educate me. I have been driving Toyotas since 1984 ('84 carb., '94 FI, '06 FI - all 4 cylinders). Exactly what is meant by "Fly-By-Wire"?

 

Its an aircraft reference, a more accurate description would be "drive-by-wire". Long story short what they're really talking about is: http://en.wikipedia.org/wiki/Electronic_throttle_control

 

the ECU is taking into account all the info
to evaluate what you want & then deliver

it is correct that there will always be a delay

 

it sucks. i'm sure its more noticable to us manual guys. i've learned to blip it a hair in first, and from there, to lift of the gas a little sooner before clutch engagement

 

+1

even so its still better than driving an auto :

 

My dads camry his this. I hate ittt. I've rana light because of it. lol. I love my throttle cable any day.

 

I've rana light because of it.

how does that work

 

I'm glad there are other people experiencing throttle lag. I mentioned it a while back and people replied like I was crazy.

In my truck at least, there is a distinct lag between flooring the pedal and when the truck takes off. This is with the tranny in D. It's pretty annoying when you're trying to pass on the freeway. I've found the best thing to do is drop it out of D and into 4th gear.

 

I'm glad there are other people experiencing throttle lag. I mentioned it a while back and people replied like I was crazy.

In my truck at least, there is a distinct lag between flooring the pedal and when the truck takes off. This is with the tranny in D. It's pretty annoying when you're trying to pass on the freeway. I've found the best thing to do is drop it out of D and into 4th gear.

Your 100% right on that one. The lag we are feeeling, IMO, is the time it takes the trans (in an automatic) to downshift gears. When in "D", most likely the torque convertor is "locked up", as it should be. By placing the trans in 4th, the touque convertor is no longer locked and thus the trans can downshift faster. It takes an extra fraction of a second to a second to unlock the torque convertor first, then to downshift to a lower gear. That little extra time can seem like an eternity when you need to move NOW.

 

Since I have found "D" finally on the new truck I have noticed there is even more delay in throttle lag than running in 4th. I didn't notice much lag at all until I found "D". I swear it feels like the truck does a different shift pattern to get to "D" as fast as it possibly can whereas in 4th it just shifted at optimum RPM's, not necessarily for fuel economy but power. Might just be me but it sure feels like a fuel economy minded vehicle since I have found "D" compared to just running all the time in 4th.

 

Maybe it's because I was born into the drive-by-wire generation, but I don't really feel the lag at all. Both my vehicles (wrx and tacoma) are manuals, yet I feel the response time is right on. Maybe I'm just too used to it.

 

remove the secondary intake filter

 

+1 This worked for me.
Mike

 

My Dads 07 Camry SE had terrible throttle lag. We took it to our Toyota dealer (Kieth Peirson), they reflashed it, drives great now. Though the 4cyl still has less power than a hamster in a wheel. Handles great though!

 

Toyota's electronic throttle stinks on ice. We used to crack up in the shop with the Siennas because you could snap the throttle and the idle wouldn't change a bit. I have a bimmer, and I'd swear there is a throttle cable in it, so responsive electronic throttle systems are possible. I also work on F-16s, and have never heard of a pilot complain of a slow response from side stick actuation. :lol: So, buy a BMW or a Lockheed Martin product.