Clearing 2.7 CRD adaptive gearbox learning - AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand


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Old 27-03-2014
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Default Clearing 2.7 CRD adaptive gearbox learning

Just found this on a UK owners web/blog page if anyone is interested.

"As intelligent CRD owners (well hopefully!!) you may be aware that the tranny "learns" your driving style over a period of time and adapts throttle response and change points accordingly.
Therefore if you drive like Miss Daisys chauffeur then it it will soften throttle response and lower change point and alternatively if you drive like Lewis Hamilton the reverse will happen.
Now the problem is that if you have had the car along time without a throttle reset it would have absorbed a lot of info about your driving style (or the previous owner) which although quickly learned by the car takes along time to change. Also small elements of this info can be corrupt causing uneven or jerky throttle response or uneven idle or the even inability to obtain top speed (largely irrelivant on our vehicles i guess).
So why not delete the lot and start again. Nothing so easy as disconnecting the battery our our cars.... far too German for that!!

What you do is;

1) Switch OFF the climate control and radio.
(2) Close ALL doors.
(3)Turn Ignition key to all dash lights ON position(not as far as start though)
(4) Press and hold the accelerator to the floor for 20 seconds.
(5)with Accelerator still to the floor, turn the key to the OFF position DONT REMOVE IT YET.
(6) Slowly lift your foot off the accelerator.
(7) Sit for 2 minutes DONT TOUCH ANY SWITCHES.
( Remove the ignition key and exit the car.


Now you may feel no difference at all in which case be happy that the throttle is as good as it could have been. Or you may notice changes. Many people clain more power - this is rubbish but it just feels liketheres more because the throttle responce is better in the top few mils of pedal travel. I noticed this but as I drive quite gently most of the time on my comute to work it will soon learn "Miss Daisy" mode again. The one thing I did notice was my smoother idle. Used to wobble a bit when stationary and not in drive. Never worried me as it was on about a 50 rpm wobble but it has gone now and idles a rock solid 750 rpm hot or cold no matter what.

Any way, dont try it if you dont want to or do if you want. What have you got to loose."


For the copyright lawyers it is from here http://m0kwr.com/jeep.html but there is nothing else useful there that we don't already know.
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Last edited by fester; 28-03-2014 at 07:35 PM.

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Old 28-03-2014
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Thanks fester,

I forgot about this one. I must do it again soon (after the gearbox oil change) and hopefully gain a little more pep after all the school drop-offs I've been doing.

I've been riding the 900 to work with all the great weather......
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Old 28-03-2014
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I have memories of reading this somewhere before but never tried it, Mine gets a pedal to the metal, full noise drive mostly but might guve it a go. PS the red is damn hard to see in a tablet.
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Old 28-03-2014
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Added to the "Everything 2.7 " thread......................


PS: Did it to mine and it's a maybe, throttle response right from the word go but not much change from before, but then mine doesn't do any Miss daisy running, EVER.
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Last edited by drover; 28-03-2014 at 05:55 PM.
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Old 28-03-2014
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Quote:
Originally Posted by drover View Post
I have memories of reading this somewhere before but never tried it, Mine gets a pedal to the metal, full noise drive mostly but might guve it a go. PS the red is damn hard to see in a tablet.
How's that. I've changed it to blue. I'm sure you have seen plently of blue tablets at your age Drover. Oops I mean can you see blue in your tablet.

I'm still waiting on a bloody clutch from Germany SMBCJ.
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Old 28-03-2014
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:d:d:d:d:d:d:d:d:d:d
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Old 28-03-2014
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Sounds like this

www.youtube.com/watch?v=gYVAOr6uJbI
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Old 29-03-2014
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German clutch / Italian bike. Hmmm. Is it a slipper?

I ordered a new long-arm upgrade for the WJ coz I had a bout of DW again. High-clearance T-case mount and 'critical-path' arms!

Bling, bling, bling......

BTW. Red is faster.
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