No more lame azz throttle response!!!

I hear ya but I didn't buy the 4Runner to go off-road. I bought it because I needed a family vehicle that would carry all my stuff and the all weather abilities. That and because mini vans suck.

Did you consider a highlander or rx350? They might fit your needs a little better.
 
If the ECU learned that one person preferred a usual slower start, what would happen when that 18-wheeler is headed your way and that person needed to get out of its way? Would that wickedly smart ECU determine that you have pressed the pedal to your usually excited level of 'heading to the golfcourse' level of acceleration? It would just ignore your 'ohhhh nooo' input? No, it would not. Because it just responds to some linear taper increase in voltage that translates onward into acceleration. It does not have you figured out and it does not make assumptions about your speediness intentions.
If there is any learning that the ECU does, it is just learning things like what fuel you are using, what the ambient temperature is, how many cyinders are firing, air flow rate, etc.

As for the Sprint Booster: Take one look at the outbackjoe graph that he posted. If that is indeed represetative of what the Sprint Busted does, it shows that one gets to the same point with or without the expensive Spent Buster. It just takes less throttle position to get there.

You want to go faster more quickly? Save your money for a sammich and press the friggin pedal!
 
What 1enginner and ANTMAN said +

I am not sure what you are expecting out of this vehicle. I personally had a pleasure of importing a 1994 80 series land cruiser with 1HZ NA diesel engine...now that was a sluggish machine but what a machine it was off-road and it could totally go further than a 5th gen 4runner in stock to stock compare.

In my opinion these trucks are 1. Off-road/rough terrain
2. Street SUV etc.

In that order.

I do get a bit tired of nature of 4Runner once in while and this is when I go and jump into my 2012 GTI 6Manual with H&R suspension etc etc....wwwhhheeee!!! Get it out of the system...back to 4Runner:)

You can put whatever you want into your truck because its yours so its all good. However, in my opinion if you didn't buy a 4Runner to go off-road but to carry your family, luggage etc......you shouldn't have bought a body on frame TRUCK that is wrapped into SUV skin. Instead, there are plenty better options for uni-body SUVs who are waaay more refined and responsive that a 4Runner.

I guess what I am saying is if I didn't take my 4Runner off-road/camping/fishing/exploring remote places......I'd never buy a 4Runner.

I bought it because I like the vehicle. Other than the lagging throttle it fits all my needs. I personally don't like the smaller uni - body SUVs so they weren't an option.
 
Pressing the pedal half way does not necessarily translate into 50% anything. Variable resistors can be designed to have different tapers. One may respond more in its first third of travel whereas another may respond more in its second two thirds. Think of a hockey stick vs a pool cue. I have no idea how Toyota has designed the 4R pedal position variable resistor to respond. But it may not be in a directly linear manner.
 
I hope to be NOT part of the arguments here, but;

I spend as much time as possible off-road and from my seat of the pants experience the '13 4Runner 4x4 is throttle mapped perfectly for my uses.

1. Because the the plastic is so near the ground on these rigs I tend to do my wheeling in low range always - No need for the brakes, just tend to keep moving between gears in manual mode. Especially when when crossing lots of rock fields, dry washes and ravines.

2. On steep down slopes where I usually don't need throttle at all but now and then have to goose it just a bit to cross boulders the throttle is 'fine tuned" so there is no surge.

3. on steep up slopes playing with the gears and throttle is again tuned perfectly.

4. In sand with hidden rocks the throttle on this rig is way better than what I had on my 2004 Land Rover Discovery.

5.When I have spent a day off-road crawling around at less than 5mph; when I do get back on the pavement it does seem as if the truck has "learned" to accelerate slower - But that only seems to last for a few miles. Perhaps it's just that my right foot has learned.

Something to ponder - - Since these engines have variable valve timing and a few other fancy performance and economy enhancements on them that are so dependent on lots of sensors including THROTTLE POSITION what effect might this gizmo have on valve and ignition timing?
 
Alright, enough. [MENTION=118444]flyinhawaiian01[/MENTION] this is not directed at you even though I quoted your post. You bring up some key points in it though.

Logic 101

Why in the world would engineers make the throttle perform like it does? It's response is non linear during application (meaning 10% displacement does not give you 10% of throttle) and that is unlike a lot of vehicles! It lags at the beginning! When you cut the wheels you have to give it more gas and then it lurches! Who are these dumba$$es designing our $hit?

1. I have an 800 hp electric motor that can give me 2000 hp instantly on start up. Do I really want to design my system with components that will be able to handle 8000 hp (4:1 safety factor) or do I want to start it GRADUALLY over time (say one second instead of 40 milliseconds) by using a variable fill fluid coupling or a variable frequency drive? If I do it this way I can use less robust components and still get the job done and not break anything.
If I design it for 8000 hp instant it's going to take a lot of money and I still am going to break $hit. For RELIABILITY and DURABILITY, I am going to put in a "soft start" so I can get the reliability and durability the customers expect. Get the reference? Basically the difference between a dragster and a passenger sedan.

2. If the 4Runner is designed to go off road (it is), why wouldn't the engineers take that into consideration when designing the throttle as well? Anyone here understand what "metering" or "fine control" is? Go find a log about 8" in diameter, pull your 4Runner up to it and climb over it using the first 10% of your pedal. Now pull up to the log and immediately push the accelerator down 30%. Which way is better? Having fine control in the low throttle positioning is key to off road performance and in some instances it could be the difference between rolling your truck or safely getting through a situation. Again the reliability and durability come into play here too. Being able to gently bring the vehicle down versus dropping the axle from three feet will definitely extend the life of the components. I'm not even going to talk about the efficiency improvement of a soft start, or in this case a accelerator pedal that gives a better range of control in the first 10% because it's huge.

This thread is just another case of people wanting everything with no compromise. I did a thread here http://www.toyota-4runner.org/5th-gen-t4rs/182051-expectations.html that talks about unreasonable expectations. Guys, everything is a compromise, especially when it comes to designing a vehicle. Do you want reliability and durability or do you want high performance? Do you want the ability to go off road and perform well or do you want a street truck only? The 4Runner is a vehicle that does both reasonably well but, butbutbut, there are compromises inherent to making it perform in the dirt and on the street. Trade it if you don't like it but before you b!tch try figuring out the "WHY" before you judge.


30% duhhh :plane:
 
Alright, enough. [MENTION=118444]flyinhawaiian01[/MENTION] this is not directed at you even though I quoted your post. You bring up some key points in it though.

Logic 101

Why in the world would engineers make the throttle perform like it does? It's response is non linear during application (meaning 10% displacement does not give you 10% of throttle) and that is unlike a lot of vehicles! It lags at the beginning! When you cut the wheels you have to give it more gas and then it lurches! Who are these dumba$$es designing our $hit?

1. I have an 800 hp electric motor that can give me 2000 hp instantly on start up. Do I really want to design my system with components that will be able to handle 8000 hp (4:1 safety factor) or do I want to start it GRADUALLY over time (say one second instead of 40 milliseconds) by using a variable fill fluid coupling or a variable frequency drive? If I do it this way I can use less robust components and still get the job done and not break anything.
If I design it for 8000 hp instant it's going to take a lot of money and I still am going to break $hit. For RELIABILITY and DURABILITY, I am going to put in a "soft start" so I can get the reliability and durability the customers expect. Get the reference? Basically the difference between a dragster and a passenger sedan.

2. If the 4Runner is designed to go off road (it is), why wouldn't the engineers take that into consideration when designing the throttle as well? Anyone here understand what "metering" or "fine control" is? Go find a log about 8" in diameter, pull your 4Runner up to it and climb over it using the first 10% of your pedal. Now pull up to the log and immediately push the accelerator down 30%. Which way is better? Having fine control in the low throttle positioning is key to off road performance and in some instances it could be the difference between rolling your truck or safely getting through a situation. Again the reliability and durability come into play here too. Being able to gently bring the vehicle down versus dropping the axle from three feet will definitely extend the life of the components. I'm not even going to talk about the efficiency improvement of a soft start, or in this case a accelerator pedal that gives a better range of control in the first 10% because it's huge.

This thread is just another case of people wanting everything with no compromise. I did a thread here http://www.toyota-4runner.org/5th-gen-t4rs/182051-expectations.html that talks about unreasonable expectations. Guys, everything is a compromise, especially when it comes to designing a vehicle. Do you want reliability and durability or do you want high performance? Do you want the ability to go off road and perform well or do you want a street truck only? The 4Runner is a vehicle that does both reasonably well but, butbutbut, there are compromises inherent to making it perform in the dirt and on the street. Trade it if you don't like it but before you b!tch try figuring out the "WHY" before you judge.

This concept in most PCMs/ECUs is called torque management. It is there to increase reliability and protect components. It comes into play every time the transmission shifts...

With that said, Toyota still screwed up the throttle mapping in the 5th gen 4runner. It's just not right when in 2wd. Most things about the truck are great, and the throttle mapping becomes much more tolerable with better gearing.... I think it is OK to point out where Toyota screwed up... It's not a deal breaker, just a small mistake.

Totally agree, everything is a compromise..., but I think this was a bit of a screw up.
 
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I ordered my Sprint Booster yesterday. Im excited to get it and I will give a personal review when it gets here and I try it out.
 
I've posted on this statement before, so once more can't hurt. Other than your seat of the pants opinion, I challenge you to substantiate that this mapping/learning capability actually exists. It is my opinion the ECU is not powerful enough, the memory insufficient, nor is the software sophisticated enough to perform this. To-date I've never seen real information cited. Until then, I continue to consider this an urban myth. Inquiring minds...

Perhaps [MENTION=66389]BlackWorksInc[/MENTION] has real information ...

Sorry for the late response, been out of the country for a week and all that stuff.

I need to start phrasing myself a bit better because those that are saying that throttle mapping is not learned/modified are technically correct. The "re-learning/learning process" that occurs when the battery is disconnected for more than 10minutes, the ECM Memory is cleared, and/or the ECM is discharged completely (hard reset) is actually stored variables on transmission, fuel trim, and throttle blade angle at idle.

Now the last part is the key one here, because it's been confused over the years to imply that it "learns" throttle response/variance over ALL ranges (and I have occasionally made the mistake of directly saying so and/or implying so and I apologize for that.) What the ECM is really "learning" is slight variances in how a customer drives to better shift the transmission into gear (these are very minor and probably not noticeable from a "seat of the pants" scale normally, but from an efficiency stand-point they matter") as well as fuel trim, timing, and so on to keep the engine running optimally within desired parameters (too much or too little fuel would trigger a DTC for fuel trim.) The final component is the most important as I said above, the throttle is mapped for idle. This is critical as the vehicle does not have an IAC (Idle Air Control) valve and so at idle there needs to be some air reaching the engine. Typically what you do after you have disconnected the battery for more than 10 minutes is perform an "idle relearn" which basically consists of letting the vehicle idle with no loads for about 5 minutes. The ECM figures out what is the appropriate throttle angle to have as it's idle bypass and how to map fuel and timing accordingly so the vehicle doesn't stall out (by the way this learned value can be impaired by a dirty throttle body or a recently cleaned filthy one as well.)

I need to find where in TIS it's buried, but I recall a document or TSB that states what values are typically learned and for what reason by the ECM.
 
I didnt get it yet but it is coming ups on Thursday. When I called and asked about my order I also asked about the tight install regarding the Heater core pipe. I was told my unit was the newer version that fits with a normal small connector with a short wire attached to the little sprint booster module. Now there is no tight fit. Someone mentioned this and sent it back because of it hitting the pipe. Driving around town the throttle doesnt bother me but going up the mountain with the a/c on you really have to have your foot into it pretty far. Anyway time will tell and any naysayers who haven't tried it are entitled to their opinion I guess.
 
FWIW - I have had one of these installed for 3 years on my 2012 Trail. (I got it for $99 so I though it was worth the test/$ ratio)

I just think that it is NOT WORTH $300.

I think the right price point is somewhere between $49 - $99.

At those prices, they will sell a LOT more, and probably will make up for selling them at $300.

They would sell 10x more @ $49, cause, may people will just buy it for fun.....

It's all in the pricing. A $300 experiment? Hell no..... a $49 one? Probably....
 
I hear ya but I didn't buy the 4Runner to go off-road. I bought it because I needed a family vehicle that would carry all my stuff and the all weather abilities. That and because mini vans suck.

Get a BMW X5........ I do have both in my driveway.... I still like how the BMW drives....
 
Get a BMW X5........ I do have both in my driveway.... I still like how the BMW drives....

My coworker is big into bmw he trades them in every 100k. He tells me he dont want to deal with the headaches and money it will cost to repair it once it starts breaking. His 2004 x5 only one he kept over 100k, went through one transmission, water pipe, radiator leaking, rear diff failed.

How many miles does your x5 have?
 
BMWs (2000 and newer) are LEASE ONLY vehicles. they don't make em like thhey used to. That can be said for most vehicles anymore
 
BMWs (2000 and newer) are LEASE ONLY vehicles. they don't make em like thhey used to. That can be said for most vehicles anymore

I shouldnt be that way though. Ive own a 2005 4runner 140k miles only issue is gas cap needed replacing. Also a 2012 altima 160k miles no major issues other than slight piston slap which goes away when warmed up.
 
I shouldnt be that way though. Ive own a 2005 4runner 140k miles only issue is gas cap needed replacing. Also a 2012 altima 160k miles no major issues other than slight piston slap which goes away when warmed up.
precisely why I went with a reputable brand vehicle known for longevity and reliability. Even with that though, my 3rd gen I just put gas in it and it ran like a top. I would probably still have it if some dumb beyatch didn't pull out in front of me and total it
 
precisely why I went with a reputable brand vehicle known for longevity and reliability. Even with that though, my 3rd gen I just put gas in it and it ran like a top. I would probably still have it if some dumb beyatch didn't pull out in front of me and total it

Usually only way you find a 3rd gen in a junkyard.. If another car get jealous and ram it.
 

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