Triumphrat

Hornblower · 07-30-2007

Quote:

Originally Posted by Pig9r

With the O2 sensor off the ECU will not make changes to the fuel maps in areas where the a/f ratio is 14.57 to 1. Otherwise in those areas when running closed loop the ECU will trim the fuel map back to the 14.57 A/F ratio which defeats the purpose of adding a custom tune. With the O2 sensor not giving feed back I don't see a reason to reset adaptions however I am not entirely sure on this and I wouldn't rule it out as a possiblity if trouble shooting.

OK...I think I understand that the purpose of the O2 sensor is to maintain and maybe even limit the a/f ratio to 14.57 to 1. Now, that I have downloaded my own tune and disabled that sensor, I should be able to attain richer ratios than 14.57 to 1, where needed, to develop greater power. I assume then, that maybe the original reason for the O2 sensor was more to limit exhaust emissions and not to create a more perfect a/f ratio. Would you agree? Thanks-Ken B.

dougl · 07-30-2007

Doing reset adapt will just wipe out any adaptation you had. Wayne told me to hit reset adapt after I download a tune.

Something I still don't understand, reset adapt aside, if you jack up the numbers in the L tables, won't the ECU still supply fuel to match the target (14.57) in the L table whether the O2 sensor is working or not? Why don't we want to change these values to something like 13?

Hornblower · 07-30-2007

Quote:

Originally Posted by dougl

Doing reset adapt will just wipe out any adaptation you had. Wayne told me to hit reset adapt after I download a tune.

Something I still don't understand, reset adapt aside, if you jack up the numbers in the L tables, won't the ECU still supply fuel to match the target (14.57) in the L table whether the O2 sensor is working or not? Why don't we want to change these values to something like 13?

dougl--I'm not sure what a reset adapt is. Is this the 12-minute tune? Maybe it was in an earlier post from you where I got the idea to run a 12-minute tune after doing a custom tune download. I haven't done that yet so I'm very interested to see what some of you more experienced guys are doing on this. Thanks-Ken B.

Pig9r · 07-30-2007

HB- the 12 min tune resets the adaptions so the ECU can "relearn" for a new set up. However if the O2 sensor is not enabled to provide feedback then nothing will be "learned." So by clicking the reset adaptions you are doing the 12 min tune. The Triumph tool has the same function.

Dougl- Early on I did some experimenting with changing the A/F ratios. It ran like crap. That is when I asked Wayne about being able to reset the adaptions because I noticed the bike would carry over some bad habits from a crappy tune to a good stock tune.

By changing the values in the fuel maps there is not a need to change the A/F ratios. The values in the F and L maps are m/g? of air, so by increasing the value in the map you are telling the engine that at that throttle position and RPM X amount of air is entering the engine therefore it will add fuel according to the prescribed A/F ratio. So as you increase the value in the L and F maps the amount of fuel being added will be proportionally increased. And more precise fueling control can be had by changing the values for in the F and L maps for each cylinder rather than doing an overall change like in the a/f maps.

dougl · 07-30-2007

Quote:

Originally Posted by Hornblower

dougl--I'm not sure what a reset adapt is. Is this the 12-minute tune? Maybe it was in an earlier post from you where I got the idea to run a 12-minute tune after doing a custom tune download. I haven't done that yet so I'm very interested to see what some of you more experienced guys are doing on this. Thanks-Ken B.

"Reset adapt" is a button on the Tuneboy sensor screen. I believe it does the same thing as the 12-minute tune, i.e., wipe out any adaptions - without having to wait 12 minutes. After you use TuneEdit to download a tune, after which, you're supposed to turn the ignition off and then on again, close TuneEdit and open up Tuneboy and press the reset adapt button on the bottom right of the sensor screen.

Hornblower · 07-30-2007

Good grief! Somehow, I missed that little tip about the reset adapt. I suppose though, like Pig9r mentioned, since I have disabled the O2 sensor, that step would no longer be necessary. Ya think? Thanks-Ken B.

dougl · 07-30-2007

Quote:

Originally Posted by Hornblower

Good grief! Somehow, I missed that little tip about the reset adapt. I suppose though, like Pig9r mentioned, since I have disabled the O2 sensor, that step would no longer be necessary. Ya think? Thanks-Ken B.

No, because the reset adapt resets the internal state of the ECU, i.e., something in its flash memory that had been reprogrammed as it adapted. Downloading a new map or turning off the O2 sensor doesn't "zero" this out.

Hornblower · 07-30-2007

Thanks Dougl--Based on this information, and just to be on the safe side, I guess I will once again take off the seat and plug my laptop back into the ECU plug. This time I will download my tune from TuneEdit, cycle power on the bike, open TuneBoy, and reset adapt. Then, I should be good to go, right? Thanks again-Ken B.

Hornblower · 07-30-2007

Quote:

Originally Posted by dougl

"Reset adapt" is a button on the Tuneboy sensor screen. I believe it does the same thing as the 12-minute tune, i.e., wipe out any adaptions - without having to wait 12 minutes. After you use TuneEdit to download a tune, after which, you're supposed to turn the ignition off and then on again, close TuneEdit and open up Tuneboy and press the reset adapt button on the bottom right of the sensor screen.

Dougl or anyone else who knows this...I followed the instructions above but I cannot get TuneBoy Diagnostics to open or run so I cannot perform the Reset Adaptive. I also found a Reset Adaptive in a menu dropdown in TuneEdit but it was grayed out. To get TuneBoy Diagnostics to open, I tried re-installing TuneBoy completely and I even tried the Window 98 compatibility trick but that was no help. Anyone know why this program won't run? Thanks-Ken B.

dougl · 07-30-2007

Quote:

Originally Posted by Hornblower

Dougl or anyone else who knows this...I followed the instructions above but I cannot get TuneBoy Diagnostics to open or run so I cannot perform the Reset Adaptive. I also found a Reset Adaptive in a menu dropdown in TuneEdit but it was grayed out. To get TuneBoy Diagnostics to open, I tried re-installing TuneBoy completely and I even tried the Window 98 compatibility trick but that was no help. Anyone know why this program won't run? Thanks-Ken B.

Tuneboy is a separate program from TuneEdit. It needs to be in the same directory as TuneEdit with an icon on your desck top. So, if you have successfully downloaded a tune using TuneEdit,your cable works, and your drivers work. You should close down TuneEdit and click open the Tuneboy icon. If you get a "couldn't connect on comm 7" or something like that, something is wrong. If you don't, then Tuneboy should open up with a dial that goes from 0-14 with 955i on it. Hit the red "sensors" button on top. This should give you a screen with 4 columns of numbers with the reset adapt button in the lower right corner.