How to gain access to the Diagnostic Mode CO adjustment

s-flow

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Apr 23, 2011
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Just went out adjusting CO on the -14 ZE.

ignition off, press both TCS and RESET and keep holding them while turning the ignition on. After a few seconds the choise between
ECU or SCU (? Not paying attention to the second choice) shows up. release buttons and toggle your choice with TCS button.

Choose ECU and long press both TCS and RESET a few seconds and the display will show a smaller "diag". Another click on TCS will toggle to "co".

To enter CO, hold both TCS and RESET buttons for a few seconds and the CO 1 should show up (witch would be cylinder 1).
To enter long press both buttons and then chose value with TCS for up and RESET for down. when done a fast click on both buttons
will take you back to the CO 1..

Click TCS button to move on to CO 2 and repeat the above. When done turn off ignition.

This worked for me though it might be altenative ways

Greetings!
 

gaps

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s-flow, are your instructions for a 2014 S10?
If so, did you install a jumper to initiate the CO adjustment process.... or just push buttons?
 

s-flow

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gaps said:
s-flow, are your instructions for a 2014 S10?
If so, did you install a jumper to initiate the CO adjustment process.... or just push buttons?
hello!

Instructions are for the EU 2014 ZE model and no jumper needed, just push buttons.

Greetings!
 

Lutsie

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Has anyone with a U.S. spec tried this? i got to the "diag" screen but that was the only choice and going into that just gives diagnostic info.

Sent from my SGH-T999 using Tapatalk
 

Bug Dr.

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You have to ground the green/white wire on the tip over sensor under the pillion seat. There are directions at the beginning of this thread (I think) and a walk through on another thread.
Mike
 

Lutsie

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Thanks bug. Didn't know that pertained to the 2014+\thought it was unconfirmed. Thanks again.


Sent from my SGH-T999 using Tapatalk
 

Don in Lodi

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The Nanny Police in the United States won't let anything happen easily. :mad: We must be protected from ourselves.
 

GDI

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s-flow said:
Just went out adjusting CO on the -14 ZE.

ignition off, press both TCS and RESET and keep holding them while turning the ignition on. After a few seconds the choise between
ECU or SCU (? Not paying attention to the second choice) shows up. release buttons and toggle your choice with TCS button.

Choose ECU and long press both TCS and RESET a few seconds and the display will show a smaller "diag". Another click on TCS will toggle to "co".

To enter CO, hold both TCS and RESET buttons for a few seconds and the CO 1 should show up (witch would be cylinder 1).
To enter long press both buttons and then chose value with TCS for up and RESET for down. when done a fast click on both buttons
will take you back to the CO 1..

Click TCS button to move on to CO 2 and repeat the above. When done turn off ignition.

This worked for me though it might be altenative ways

Greetings!
I've got a US 2014 S10. I was able to get to the small "diag", but could not get it to display "CO". The US version seems to have different menus. There was only the ECU choice, no other choice was available at that earlier step. I held the reset and tcs buttons when I got to diag, but rather than displaying co, it started showing other diagnostic values it went from 1 to 3, then on and on. The number and settings didn't appear to have anything to do with the co setting. Rather than mess up my bike, I turned the ignition off and got out of there! If I've missed a step and this is working for anyone else, please post back.

My bike is still not running correctly. I backed off the screws on the throttle body 1/2 turn without performing a proper throttle-body sync, and between that and additional run-time, the bike has gotten much better. Very occasionally, I'm still experiencing stalls. This happens primarily when sitting at a red-light. Light changes, apply throttle, and bike dies! I've found myself modifying my riding style by increasing throttle before releasing the clutch so as not to stall in traffic. Riding a bike that kills randomly takes away a lot of the fun of motorcycling! I'm going to back off the TB screws the full 3/4 and do the sync properly, and take it from there. Hopefully that alone will provide enough improvement.

thanks,

GDI
 

s-flow

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Jackal said:
To what level did you adjust the CO's and are there any difference ?
+15 and my bike has akrapovic slip-on and power commander with a downloaded map since erlier so
I was already pretty happy. I had the O2 optimizer adding a bit fuel in the closed loop (from 14.7 to around 13.9).

The bikes co adjustment may just do the same thing?

Difference is there, a little more responsive and a little smoother.

Greetings! Daniel
 

Jackal

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s-flow said:
+15 and my bike has akrapovic slip-on and power commander with a downloaded map since erlier so
I was already pretty happy. I had the O2 optimizer adding a bit fuel in the closed loop (from 14.7 to around 13.9).

The bikes co adjustment may just do the same thing?

Difference is there, a little more responsive and a little smoother.

Greetings! Daniel
Thanks for the reply. ::008::

I did the air screw adjustment and removed the Cat but I cant say that there is any diff, I will try the CO setting also and will give feed back on it.

Actualy I'm quite happy with my ZE but if I can have some improvement why not.
 

Bug Dr.

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Lutsie said:
Has anyone with a U.S. spec tried this? i got to the "diag" screen but that was the only choice and going into that just gives diagnostic info.

Sent from my SGH-T999 using Tapatalk

Sorry, I didn't know you had a 2014. I don't think there is a way to access the CO adjustment on the newer bikes in the U.S. At least, I haven't seen it yet.
Mike
 

Rodge

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Lutsie said:
Has anyone with a U.S. spec tried this? i got to the "diag" screen but that was the only choice and going into that just gives diagnostic info.

Sent from my SGH-T999 using Tapatalk
North american 2014 ES here, been trying to get into the mode many times...
What I have done so far...
Blue/black, yellow/green, blue wires on lean sensor.
Shorted each one after the other while bike was on:
Center stand, neutral... no joy
Centre stand, 1st gear... no joy
Side stand, neutral... no joy
Side stand, 1st gear... no joy

Every time I shorted the blue wire I had an err displayed (error).
Every time same result, ECU or SDU (suspension) choice -> diag codes access, no CO mode access.

Still working on it....
Cheers
 

Xt1200zsupertenere

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Checkat on My 2011 .... Europé modell , both cylinder 1 and 2 stod on co setting : 0
Just for fun i checka how long ju can adjust .... BUT i quit after +120 ( hade more to give in settings ) and went back to cero ...

On MY bike no need to grund ANYthing ! Just hold in both bottoms and put igition on and waited 7-8 sekunds



 

Herairk

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Placerville ca
I did mine today. they where both at zero bumped to 6 each. seems to idle alot better and quiter. I dunno must be me. But sure sounds better.

Edit: I live at about 3500 feet. so maybe the extra fueling helped it out I don't know but seems soo much smoother now.
 

surfinpig

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I just did mine and used a gator clip so I can adjust easy. I'm trying to get rid of the off idle stumble. What a pain in the ass it is. Fn drives me nuts. I synced it tune up and this. It seems to still be there. I'm now going to resync at 4500 rpm. If that fails try to get her flashed about 2 hours from my house from a ecunleashed dealer. If that fails I'm having a parts sale and off to a dealer I go to trade her and take a loss. Any other ideas to get rid of the stumble?
 

xbud

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Is there anyone using the CJM with the CO+ adjustments?

I am not sure how the CJM works with the higher CO+ adjustments, if at all......I do like the way the CJM got rid of the off idle stumble and smoothed out the take off from a stop. I'm not too worried about the crazy timing advances since I rarely open it into the higher rev range.

Really liking the Tenere the more I learn about these little tweaks.....hopefully It will truly get to be Super!
 

Checkswrecks

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xbud said:
Is there anyone using the CJM with the CO+ adjustments?

I am not sure how the CJM works with the higher CO+ adjustments, if at all......I do like the way the CJM got rid of the off idle stumble and smoothed out the take off from a stop. I'm not too worried about the crazy timing advances since I rarely open it into the higher rev range.

Really liking the Tenere the more I learn about these little tweaks.....hopefully It will truly get to be Super!

I did before having the ECU flashed. Worked fine.
 

becoyote

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Anybody above 20?

My bike runs great but doesn't idle the way i want it to.

When the engine is cold it starts right up and idles ok. Once it gets to like 140 degrees it sounds like the ecu is giving it less fuel and it is always on the edge of stalling. It has actually stalled once or twice but it is rare.

The bike is flashed by avc for a stock bike. Didn't do this when I had arrows, pcv and autotune.

Valves are all in spec, new plugs, tbs synched.

I am at +20 now, going higher is just adding fuel right? Might just go back to 0 and buy one of the new dynojet pcfc modules.

Any thoughts appreciated.
 

BadNews

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Well, I've read most of this thread searching for information on CO settings for 2014+ models. I've also done several searches on the forum for info on this subject, and haven't found anything. So I am volunteering information I've found in the OEM Service Manual for 2014+ models, as follows:
On page 8-35 at the bottom of the page is this "tip", which is on the subject of using the display for diagnostics:

If ECU was selected, press the "TCS" button to switch the display between "DIAG" and "CO".

I haven't tried this yet, as I want to do the air screw adjustment and TB sync before messing with CO settings, but has anyone with a 2014+ model been able to adjust the CO settings?

:question: :question: :question:
 
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