Lol

 

Hey, I'm also very skeptical of this ECU reset process. I do believe the autos have an ECU, I'm just not positive this is the proper way of resetting it (w/o unplugging battery for a bit). & it makes logical sense that manual's would not have an ECU as you choose when to shift gears

 

Ahh i see....i never saw anyone specify their goal was to reset the tranny ecu which i know earlier model hondas had but no clue on our tl but i assume it does. I was a told a while ago by a mechanic that its good to reset your engine ecu after installing mods to have it adjust to the new mod and help performance which is what i thought u guys were trying to acheive...

 

cant wait to try this.. car is in the shop

 

Perhaps you should research a bit as to what an ECU is and then u would understand that its not transmission specific as to if a car has one or not. Autos may benefit more to this process as far as shift points are concerned, but there is no logic behind manuals not having an Engine Control Unit.

 

I know from experience that the car (AT) can/will drive different after leaving the battery disconnected for hours, but I had never tried this method before last night, and it totally works. i did it for poops and giggles because i have been trying to keep my mpg's high so my grandma driving has been in full effect. i did it in the parking lot of Jets pizza. They probably thought i was weird for chillin out in my car for a few minutes before i walked in...but all was good. My 8 corner pepperoni and mushroom was awesome, thanks for asking. But yes, this totally works. The response of the pedal was like it use to be when i first bought this car, and back when i use to push it much harder. But i noticed it the most this morning on my drive to work. I hit a lot of lights and make a number of left turns and the feeling the car gave from a stop to full go was way more responsive. Its not going to add power, just a little quicker/earlier response when you start to press the pedal down. But for what its worth, i approve.

 

Thanks for your input but I'll pass on researching more as I could care less about manual vehicles and the ECU....just stating that MULTIPLE people on this thread claim that that resetting an ECU on a manual will do nothing

 

Just saw this thread last night and tried it this morning. The Ack used to kinda hang in 2nd and 3rd a little longer than I wanted it to before I reset and this morning it was shifting at the exact points I wanted it to. Guess it is learning my driving style! No big difference on throttle response though. Just glad the tranny is shifting the way I would expect it to. Also gonna replace the pressure sensors play it safe but with only 30k miles I expect a long life outta this TL too

 

^^^^I agree with you there, my TL-S does the same thing it kinda get a delay between shifting but after I reset the ECU and the shifting point are perfect where I want it, no feeling in increase in power, it just the shifting is more crisp and precise than before. I would say reset ECU for MT is pointless since you guy shift when and however you want, resetting AT ECU is equivalent of going from lazy shifting in MT into fast shifting (slamming through gear) that all, no increase in term of throttle response or power increase.

 

Okay I looked in my 04 - 05 Tech manual last night. I do not see this procedure listed anywhere. However there is a procedure for idle relearn if the ECU has been replaced or updated that follows somewhat, but has nothing to do with pressing on the accelerator.

It would be nice to have an Acura dealer or tech weigh in on this. Maybe this is like a secret handshake or something.

 

It works!! my car was feeling very sluggish I thought something was wrong with the car, I was getting 19mpg avg city/hwy and it was pissing me off to the point that I wanted to buy a new car with better mpg. I went and put some techron injector cleaner and gained 1mpg but still felt sluggish. Then I did this pedal reset and wow my car is back to normal, is more responsive and I'm getting 24mpg avg! 83K miles A5T

 

Im gonna try this tomorrow when I wake up before work. My TL was feeling like a slug. (Not that I beat the balls off of it, Im still in "baby it" mode.)

TL's = Terminators.

 

I just got my TL, but i'm going to try this in the morning to see if it makes a difference.

 

Did this today on the car. DEF a big change.

Glad I saw this topic.

 

Yea The manual tranny feels like it wants to move all the time.
Very responsive 6spd.
Test drive an auto and a 6spd at a dealer . Beat the piss out of it. You will want to buy a 6spd. But the automatics were very silky smooth at full throttle, and fun at the same time.

Good luck all

 

Did this last night, gonna drive it tonight, I'm excited

 

Can't tell a difference..

 

Can't tell a difference either.

 

Count me in too fellas.

 

i noticed a improvement with how quick my car shifted immediately, but after a day it went back to normal. Next step is to replace those pressure switches!

 

I notice a bigger difference when I drive like a granny for a while...then have to punch it for something...it feels like the car needs some time to adjust and WAKE UP!

 

TL: Cuising...cruising...oh, WOAH! GO TIME!!

 

I would like to add my commute to work is only 1.5 miles one way, so my driving is Sporty not much of highway driving that would fool the computer from my regular driving.

 

ok i will attempt to clarify this for a few people. what is being reset is basicaly your driving patterns so if you sit in traffic all the time then try to go to the track you will not get the same response as if you drive fast all the time.

my reason for doing this: while on deployment the only one who drove my car was my wife (normally only i drive it) and for fear of damageing my car in an accident she drove granny style when she did drive my car (so the car wouldnt sit for months) when i got home the car drove like it was in desperate need of an oild change (although the oil was changed 1-2 months before my return) i reset the ecu using the gas pedal method posted in this very thread and the difference was night and day. much better response. i have an AT by the way.

yes it works how much difference will depend on the situation and transmission type does not matter

 

I have to agree that this works! Just purchased my used 07 base a few days ago. I drove several used TL's while looking for a car. I do remember driving an 06 a few weeks ago, and I remember thinking, "Hmm. This one specific TL seems to have more pep than the other TL's I was test driving". Later, I chalked it up as my mind playing tricks on me. I had no idea that this car's ECU adapted to driving conditions over time.

Just used the gas pedal method to try and reset the ECU on my 07, took it out for a drive, and happy to say there is a BIG difference. The throttle response seems to be much quicker and/or much more sensitive. RPM wise, the shift points seem to be pretty close to where they were when I first picked up the car and hit the gas pretty hard, but the shift points seem to come much quicker, and the gas pedal feels "very touchy".

I might be wrong, and my mind may be playing tricks on me, but I'll be smiling all the way to the looney bin!

 

I can confirm this works for manuals. My car was feeling sluggish because most the time I drive efficiently. Now it feels great again when I punch it! Going to be doing a lot of resets from now on!

 

I tried this, didn't notice a difference. maybe it has to re-adjust for my mods? who knows. still hauls ass though!

 

Is there any downside to resetting the ECU too often? I just reset mine and can tell a noticeable difference and it got me to thinking, why not do it every morning so its basically a fresh start every day?

 

^^^the only down side is your CD player will start in the beginning instead of where you previously left off.

 

ill give it a try

 

This is indeed VERY true. It's kind of like powering you PC off and on when you notice running very sluggish. The reason for this is due to the adaptive memory that holds TONS of information about you, the car, everything. When you do a ECM (memory) reset, you're erasing all of that 'clutter' out of the memory this allowing the CPU's speed to be increased not to mention no 'adaptive base' to work off of...just the initial map that Acura programmed it with to give the best overall performance and fuel economy.

The easiest way to do this without having to anything each time is by simply putting the constant hot (for retain the adaptive memory) on an ignition switched hot. That way every time the switch is turned off, power is removed from the ECM and you're good!

This generally lasts until P1000 is removed from the ECMs memory by completed drive cycle(s). Be sure and recorrect the modified circuit several days before needing an inspection. :-)

 

For those saying they didn't notice a difference, please keep in mind what this does.

The TL's ECU adjusts to your driving style over time. So if you drive aggressive, then reset the ECU and continue to drive aggressive, then it makes sense that you won't notice much of a difference. For those who often drive like a granny, then occasionally want some aggressive shifting, that is where this reset can make a big difference. If you drive like a granny most of the time, the ECU starts to lag before shifting (to avoid unnecessary shifts and keep the gas mileage up.)

 

After resetting it, should you drive vigorously for the next few days and whatnot?

 

Let me just say that I really do not know how it work but I think it is quite different than restarting you PC. ECU program is much more simpler and it uses inputs from multiple sensors and adjust accordingly (engine temperature, outside temperature, humidity level, gas octane level and so on). It remembers it's setting next time you start you car.
I would compare it to Google auto complete, it is in a ready position kind of like key on a keyboard represents a sensor key send a signal and it's been displayed on the monitor.
If you've typed AcuraZine in a Google search before now just typing first two or three letters Google will autocomplete for you whole sentence.
So I think it adjust more to environment rather to you driving style. And if I need it to stay a little longer without upshifting I just put it into manual why would I want to clear what is good for the car.

 

Bum-pity Bump!!

Well since I am a second owner, she(previous owner) drove the car very slowly from what she told me, after a yr. and a half of owning the car I kept forgetting to try this out. Now that the pressure switches have been changed I will try this out as well.

Hope I am one of many who seem to have a change in light throttle response, man mine just feels very sluggish when it comes to getting on the freeway with short distance on ramps. Also building up to speed on freeways takes forever also. I do a lot more highway driving and a small percentage is traffic.

 

Well, I cant seem to figure out my TL's problem. 05 TL 6MT. when my car feels sluggish I undo the negative cable on battery for a few hours and hook it back up then drive. It feels like a million bucks, power is there, response is very fast and i love it. but when i get home and turn the car off and leave it for a little while then drive it again, it feels sluggish again like a 4 banger. Why is this happening, any ideas?

 

tell me about it

i wish i could shut down the ecu learning for the transmission pattern forever... I just had it rest today and its always like night and day difference.... before resetting i have no low end pep to the point where i have a hard time keeping the car going on the highway, because it just doesnt want to accelerate under 2000 rpm until you press a little more and more on the gas pedel where the rpm's jump above 2k and we get going but very slowly. After resetting the ecu the car feels 200lbs lighter.

I drive an 08 altima as well, while much slower car then my TL it just moves on the highway without any hick-ups... very disappointing to be honest. My last acura or honda for sure...

 

it sucks so bad. I thought about replacing the Intake air temperature sensor, and the Knock Sensor and see if that helps. If it doesn't help I'm gonna

 

dont... i already did...

 

I just did this yesterday. While it wasn't a night and day difference by any means, I did notice a little better throttle response while driving to work and school today, not sluggish at all like it was before. 08 base, I had never done this before.