How can i rest my car ecu after installing the Headers ?
Do I have to remove the bettery for 1 or 2 mins and thats it ?

 

http://www.mini2.com/forum/1940398-post5.html

GotMINI

 

hmm, so removing the neg. terminal off the battery will NOT reset it? Or will it just the same?
Does seem easier and safer to disconnect the batt. terminal than to go into the software of the ecu for the resetting.

My question is, if there's a current JCW reflash, and one disconnects the battery to re-set the ECU, will that erase the JCW reflash? Or is the re-flash not eraseable by disc. the batt.?

 

The ECU stores its information utilizing some form of solid-state storage... disconnecting power will not remove your ECU configuration. The only way your configuration can be changed is by overwriting it with something else via the OBD port. I suppose you could think of it like a USB memory stick. The data on the stick will always remain intact (well, assuming you don't have a defective one or something happens to the stick that wipes out the data) even if you plug it in and remove it several times. The only time it will change is if you purposely remove/add data.

On another note, I don't believe disconnecting the battery accomplishes the same task as going through the steps from the link above. Additionally, as far as ease, resetting the ECU is remarkably simple and certainly not as time consuming as having to go in the boot to disconnect the battery. Of course, for me, I always carry a lot of stuff in the back, so if it saves me from having to remove everything from the boot to gain access to the battery, I'm all for it.

GotMINI

 

Disconnecting the battery will not work. The procedure from the MINI2 link is just a cluster reset, hence the vibrating needles. The only true way to reset the ECU is with a GT1 at the dealer.

 

Yeah, I've read that, too, regarding the cluster reset. Perhaps it's just me, but it seemed to make a difference when I followed the instructions. Course, anytime you do something like that, you are always more attentive to what the car is doing... I guess you just want to notice something different, even if it really changes nothing.

GotMINI

 

Now How Can I Do It.. Sum People Are Saying That U Can Do It By Battery.. And Sum No.. If I Remove The Bettry For 5 Mins ?? Do I'll Lose My Jcw Software ???

Can Sum1 Tell Me How To Do It Exactlly And How Much Dose It Cost Me To Do It In The Dealer.. And Wut Aout The Air Bag Light ? How Much They Rest It ? Just for my information .. i want to know the price.

 

Like I stated above, the only way to truly reset the ECU is with a GT1 at the dealer. You will have to contact your local dealer for the price, if any.

One of the moderators need to merge these two threads.

 

I do not think this works for a 2006...
I scrolled through the numbers but never saw the "log i-off". Just repeted the numbers.
I have a S 2006 Convert.

 

doh... not sure about later model MINIs, but since mine is an '03 that procedure seemed to work for me. I haven't read anything that has stated the procedure should be any different for the newer models, but I also haven't researched it either. It could also be related to the fact that you have a convertible, but I'd find that highly unlikely. Perhaps someone else knows what the correct cluster reset procedure for the '06 is?

Just out of curiosity, when you came across test 19, did you wait a bit? It should, after a few seconds, start to toggle between log i-on and log i-off automatically.

GotMINI

 

I'm sorry for you guys, but I am working with BMW and have access to a GT1 and to the new DISplus.

It is not possible to reset the ECU via the GT1 ! You need a very specialised development tool from BMW directly, which is not given to standard bmw dealers, nor the larger dealers.

 

As partsman said, disconnecting the battery or resetting the cluster will not reset the dme or erase your your flash.

I backed this up by trying all the mini urban legends, then reading out the settings using a gt1.

Your adaptations will adjust on thier own anyway. That's why they are called adaptations.

If you can't wait a tank or two of gas, then have your dealership do it, or find an independent shop that has that capability.

Disconnecting the battery will not clear the airbag light either, infact it may cause some lights and other minor issues.

I really wish this myth would die already. If anyone does get a warm and fuzzy from doing this, please keep it to youself.

Legal notice: The poster of this message will not be held responsible for any feelings hurt while trolling this message board. (that should be read in a deep, but near whisper voice)

 

Yes it is.

 

The text in that post may be wrong. It MAY read "l off" and "l on". Look for the trip space to read "19." Here's instructions I wrote up at one point. (Was fdone on '02. May vary depending on model/year.)

_______________
» To enter the menu:
1. Insert the key and turn it to position 2 ('ON'). Do not start the engine.
2. Hold down the trip-reset button for three seconds.
3. The display will show 1. tESt.
4. Limited menu options are available at this stage. To enable all of them, continue with the following steps.
5. Press the trip-reset button until you reach test #19. The display will alternate between 19. L on and 19. L oFF.
6. When the display shows 19. l oFF, press the trip-reset button.
7. The display will reset back to 1. tESt. You can now navigate through all available menu items.

» To navigate the menu:
1. Pressing the trip-reset button will advance the selection. In other words, from 1. tESt to 2. tESt.
2. To enter a test, just wait two seconds. You will be taken to the first value in that menu, like: 1.0 00123
3. To return back up a level, press and hold the trip-reset button for three seconds. For example, this will take you from 1.0 00123 to 1. tESt.
4. To exit the menu, you can:
-a. Return the key to the "off" position.
-b. Run test 21. rESEt to reset the computer and return you to normal operating mode.
-c. Navigate to test 0. tESt and press the trip-reset button the enter the test.
5. Once test mode is entered, the engine may be started. Certain tests will not function while the engine is running, notably 2. tESt.

 

I have to go with 002 on this one, as I have had it done by a friend who is a MINI tech and watched as he did it.

 

As Foxtrot_Xray posted above that procedure is the BCU or Body Control Unit maintenance menu. The body module controls just about everything that the ECU/DME doesn't such as lighting, door locks, instruments, etc.

 

so to sum it all up, the car will eventually learn and try to adjust to (after 2-3 tankfulls) whatever modifications it notices, such as exhausts, etc...?

basically not needing this re-setting of the ECU at all...?

'course, it will run smoother if you re-flashed it with a custom tune or at the very least a JCW reflash once the modifications were completed (exhaust, pulley, etc)

 

Exactly - I don't know much about the ECU, but from what I have learned, it 'adjusts' over time. Granted, resetting it would cause it to immediatly adjust, but that may even be worse than letting it learn..

 

+1 Amen!!
Jim

 

One more thing, the car will not run better if you reset the adaptations, it will just adapt a little faster. In my experience it will run worse, especially noticable on m5's.

For those that think the resetting adaptations isn't possible with a gt1, I'll see if I can post a screen shot of it.

This really is a laughable argument and I'm not sure why it bothers me so much. maybe because it is indicative of other info in the forum.

 

Well 002, most of us acquire whatever knowledge we have via forums such as this and if a rumor regarding something isn't correct, I'd certainly hope people such as yourself would at least try to correct it before it propagates any further. If people choose not to accept your explanation, well I suppose you just have to let them be. Chances are they are so vehement regarding their position, nothing you say will alter their way of thinking anyways.

I, for one, stand corrected regarding the whole reset ECU procedure. I simply did a quick search on-line to see if their were any steps to reset the ECU and never once tried to validate whether it actually worked. Sure, I might've thought it did something, but as I stated before, you always seem to be looking for subtle changes when something like that is performed anyways. I am in agreement with you, though, seems their is enough information here to officially dispel the myth and I'm sure people with more questions could always contact their SM/SA to find out further information.

GotMINI

 

CarteMD was right about clearing the adaptations. Although the menus are there fallow and it is selectable, after a minute or so an error message states that it cannot clear the values for this engine.
Sorry for the confusion. I'll edit the incorrect posts later.

The rest of the info is true though.

 

wut is the purpose of doing all this ?

Let us to say if the headers will gives me 10HPs .. and i didnt rest my ECU. wut will happen ??

I need to know wuts the purpose of this..

I own JCW 03 so i think the ECU is upgraded right ??

 

Nothing, you cant reset it, read post 22.

People think that the dme maps will respond to the new mods faster if you reset it. That's it. Reset it, clear it, whatever, should not be confused with tuning it, flashing it, programming etc...