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Old 06-17-2015, 03:24 PM
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Holy Crap you guys.....sneaky ECU reset WORKS!!!

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Old 03-17-2014, 10:56 PM
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Peeps believing this have no technical knowledge.
Old 03-17-2014, 10:58 PM
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Originally Posted by HeissRod
If it is done right, you will hear something that sounds like actuators resetting and testing themselves after the 2 minutes are up. After that, just start it up.
Okay many thanks. Regardless of what the sound is, I can just start it up after two minutes.

I get that it is clearing the history on the adaptive transmission and so it goes back to learning your driving style. My Lexus has this too, but much different process to reset.

My problem is that I have had the car for three weeks and the thing is a monster. I am not sure I will notice even more power. It is good to know for after a long road trip.

Thanks again for the help and to all those that contribute to this forum. It is a very valuable resource.
Old 03-17-2014, 11:06 PM
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Originally Posted by searchdev
I know it has been a long time since this topic was discussed and I feel silly asking this but I didn't see it in any of the thread posts.

Once I do the four steps and let it sit for 2 minutes, what do I do then? Start it up? Take the key out and then put it back in and start it?
Yes, and you just wasted three minutes of your life for no reason at all. Follow the several posts after yours and you will see what this actually does.
Old 03-17-2014, 11:17 PM
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Originally Posted by Mackhack
Wrong. Nothing is testing itself or the like you just said.

You will hear this every time you take your key out of the ignition and wait for 30 seconds. The systems shutting down and the actuator motors are closing the vent flaps. This has NOTHING to do with the TCU reset.

Proof? Sit inside your car, turn the radio off, take the keys out and sit and wait. You don't even have to lock yourself in. Just sit and wait and you will hear it after 30 seconds to max 2 minutes (I never had to wait that long). The CAN Bus shuts down even sooner (as soon as your cluster display turns off, the CAN Bus is asleep).
Did I say the actuators had anything to do with the reset? No, I used it as a judge of the time required for the system to do it's reset.

And are you saying that this reset does absolutely nothing? This thread should really be entitled adaptives reset.
Old 03-18-2014, 12:18 AM
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Originally Posted by searchdev
My problem is that I have had the car for three weeks and the thing is a monster. I am not sure I will notice even more power. It is good to know for after a long road trip.
That's the point. You won't gain a single HP more. It resets the adaptive values from the driving style you have. Supposedly it takes 40 gear shifts then it locks in your driving style. So if you drive like granny on the back road the shifter points will be very early and you won't have all the upper rpm compared to a Michael Schumacher F1 race driving style.
Old 03-18-2014, 12:20 AM
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Originally Posted by HeissRod
Did I say the actuators had anything to do with the reset? No, I used it as a judge of the time required for the system to do it's reset.

And are you saying that this reset does absolutely nothing? This thread should really be entitled adaptives reset.
Did you see me saying it doesn't do anything? I explained that the actuator motors that you hear have nothing to do with the reset of the adaptive values. Read again what I wrote and I'm sure you'll understand.
Old 03-18-2014, 03:20 PM
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Originally Posted by Mackhack
Did you see me saying it doesn't do anything? I explained that the actuator motors that you hear have nothing to do with the reset of the adaptive values. Read again what I wrote and I'm sure you'll understand.
Oh yeah?! Well, your mother wears combat boots!
Old 03-18-2014, 04:35 PM
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Old 03-18-2014, 04:54 PM
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Originally Posted by SheriffDep
Fixed for ya
Old 04-06-2014, 03:27 PM
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I am guys is there any way to turn my esp on because it is off I tried in the settings but it says off and won't let me turn it on any help would be greatly appreciated.
Old 04-06-2014, 05:34 PM
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Originally Posted by skatsuba
how to reset if i have keyless go?
I've tried this with keyless-go:
  • with your foot off brake
  • push keyless button 2x (once is for aux, 2nd is for full ON)
  • Press the gas pedal to the floor and hold
  • push the keyless go again (turns off), hold the gas pedal for five seconds
  • Release the gas pedal and wait at least two minutes for ECU to reset (don't open doors or mess with any radio settings, etc)

I usually hear a dull "ping" when the ECU finally resets

Last edited by Toadster; 04-06-2014 at 05:38 PM.
Old 05-05-2014, 05:47 PM
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Glyn is correct. This does not reset adaptations on the ECU nor the TCU. I have reset my ECU adaptations and you don't get the throttle responsiveness that you do with OP's method. I have also done the TCU adaptation and the shifts are violent. None of the adaptations that you clear via STAR compare to this. This method really does make the throttle much more responsive.

Nutshell:

OP's method makes throttle responsive
ECU adaptation reset via STAR nothing extremely noticeable
TCU adaptation reset via STAR makes the downshifts and up-shifts pretty violent. You will feel jerks each time gears are changed. They shift pretty fast too.

Don't bother with the STAR reset. Stick to this.
Just my 0.02

Thanks,
Old 05-05-2014, 05:58 PM
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Originally Posted by W203E35
Glyn is correct. This does not reset adaptations on the ECU nor the TCU. I have reset my ECU adaptations and you don't get the throttle responsiveness that you do with OP's method. I have also done the TCU adaptation and the shifts are violent. None of the adaptations that you clear via STAR compare to this. This method really does make the throttle much more responsive.

Nutshell:

OP's method makes throttle responsive
ECU adaptation reset via STAR nothing extremely noticeable
TCU adaptation reset via STAR makes the downshifts and up-shifts pretty violent. You will feel jerks each time gears are changed. They shift pretty fast too.

Don't bother with the STAR reset. Stick to this.
Just my 0.02

Thanks,
Star reset is only necessary and recommended if your car has shifter issues. The reset is not there for the amateur hobby Star user who thinks he knows it.
Old 05-05-2014, 06:12 PM
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Originally Posted by Mackhack
Star reset is only necessary and recommended if your car has shifter issues. The reset is not there for the amateur hobby Star user who thinks he knows it.
Depends what your definition of shifting issues are After TCU starts to adapt and slow shifting I consider that shifting issues just kidding.

I remember you from JC. Good to see you here.
Old 05-05-2014, 06:25 PM
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Originally Posted by W203E35
Depends what your definition of shifting issues are After TCU starts to adapt and slow shifting I consider that shifting issues just kidding.
If your car has issues with shifting gears you'll notice it and your stealership will fix it (hopefully).

When you want that your TCU shifts more aggressive and rather sooner than later then the TCU key reset (explained here in this thread) is what you want.
Old 05-05-2014, 06:27 PM
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Ohh I forgot the most important reason for my reply. Yup, you are right. Adaptations on the TCU should only be done for shifting issue. I agree with you.
Old 05-05-2014, 06:32 PM
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Originally Posted by W203E35
Ohh I forgot the most important reason for my reply. Yup, you are right. Adaptations on the TCU should only be done for shifting issue. I agree with you.
Thx
Old 05-05-2014, 08:06 PM
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Reset

My 2000 E430 is currently in limp mode..........tried reset with no success...........will only idle........no response when accelerator is depressed.
Old 05-05-2014, 08:15 PM
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It's actually closer to 3 min. You will hear all the normal stuff happen at 2:00 in every E class but what you want is the CLICK at about 2:45 or so then you can start it up. Take the car out for a cruise so it's warm then pull over and reset then let her rip.
Old 05-05-2014, 08:16 PM
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Originally Posted by chiromikey
I think Jim has the record for the longest running thread in internet history!
I was just thinking the same thing Mikey
Old 05-05-2014, 08:35 PM
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Originally Posted by Hammer Down
It's actually closer to 3 min. You will hear all the normal stuff happen at 2:00 in every E class but what you want is the CLICK at about 2:45 or so then you can start it up. Take the car out for a cruise so it's warm then pull over and reset then let her rip.
It's actually done as soon as the IC turned off, no need to wait 2...2:45...3 minutes
Old 05-05-2014, 08:58 PM
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You're both wrong. The only correct way is to wait until the battery dies.
Old 05-05-2014, 09:15 PM
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Originally Posted by johnmthomasson
My 2000 E430 is currently in limp mode..........tried reset with no success...........will only idle........no response when accelerator is depressed.
PM sent.
Old 05-06-2014, 04:54 PM
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Thanks a bunch for this info ! Before, I drove it to see how it felt before I did the reset and , WOW the difference ! Makes getting to work alot more fun ! I have to switch the trans to "comfort mode before my son uses it though. He uses the car to practice before he takes his driving test next month, don't want it to mess with him. Tried it on my wifes Nissan Armada and it made a big difference. Made sure I felt how it was before then did the reset- there is a big difference, the the big *** thing feels alot lighter and quicker !
Old 05-06-2014, 07:51 PM
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Originally Posted by Toadster
I've tried this with keyless-go:
  • with your foot off brake
  • push keyless button 2x (once is for aux, 2nd is for full ON)
  • Press the gas pedal to the floor and hold
  • push the keyless go again (turns off), hold the gas pedal for five seconds
  • Release the gas pedal and wait at least two minutes for ECU to reset (don't open doors or mess with any radio settings, etc)

I usually hear a dull "ping" when the ECU finally resets
ooh thanks for this one Toadster... I did it with my door open using the key and was annoyed. Couldnt confirm if anything really worked because I felt nothing. Will try your keyless method now


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