tps question

[MotoX6]

hey guys i want to burn the race map onto my ecm and am wondering if i will need a tps reset right away. can i burn the map and reset later if needed? basically, is the tps nessesary when mapping? or something that is (recommended)

also- my ecm is the 03 so burning the map shouldnt be a problem ive fetched my stock one and looked it all over. my tps is set at 5.9 right now

thanks!

[dallasb]

If you are only burning the maps then no you don't have to reset the TPS. It won't hurt to reset it...but it doesn't have to be done. I would suggest resetting it if you plan on doing any mapping work to your bike. Only burn the maps not the eeprom. Make sure and save your original eeprom so you have something to go back to.

[J_Undisputed]

I just slapped a race map on mine and my idle is for sh*t now. It runs slow and stumbles down to seven and will stall if I don't give it some gas. I did a reset right after, it didn't change anything. Once the bike warms up, it seemed ok.

So I may have tweaked something inadvertently. I'm going to rerun through the whole copying, renaming, burning sequence. Maybe there was a some kind of mistake when copying the values over from the race msq to the stock one. If that doesn't fix it, I'll try the tps reset again and try less pressure on holding the valve closed to get it down to zero.

[pmedictw]

I could be worng, but I don't think you want any additional pressure closing the throttle, other than what you get when it snaps closed from WO. Could be your issue.

[J_Undisputed]

Thanks pmedictw. Yeah, thats what I was thinking, It only drops as low and 0.8 without any touch on closing the throttle. O.4, with a slight touch. I guess that what the extra 2 turns of the idle screw are covering...

[dallasb]

@ J disputed

Did you change your row and column headers? They are different between the race and stock fuel maps. You also need to copy over the timing maps for it to run correctly. When you do a tps reset you do want to slightly twist the throttle closed. I'm not saying to crank down on it...but just keep pressure to ensure that you do a proper reset.

[MotoX6]

so my tps should remain at 5.9 then even after swapping the maps? sounds like i can just burn em on and run it the same exact way as i did before? thanks guys

[J_Undisputed]

dallasb,
I don't believe I did. I was following the Video (http://www.buellxb.com/Buell-XB-Forum/Do-It-Yourself-Buell-Mods/How-To-Video--Burn-a-Race-Map-onto-Stock-ECM-03-07) by Sirius.

I only copied the values as in the video (5:00 minutes in) over and renamed the file. Unless the first row and column of the values are row and column headers you're referring to. If you or anyone can shed any light on what I did wrong, I'd much appreciate it. Thanks.

- J

[nativeXb12Rbuell]

The TPS is the essence of this tuning.
If the TPS value is incorrect, the ECM will provide the amount of fuel required for the wrong throttle setting and hence poor running will occur. A worse scenario is if you tune the bike with an incorrect TPS value, then any future correction to TPS will result in incorrect fuel maps
you might want to while your at it to also reset the afv too.



TPS-Problems (http://www.buellxb.com/Buell-XB-Forum/Buell-Firebolt-XB12-XB9/Troubleshooting/TPS-Problems)
/Do-It-Yourself-Buell-Mods/-tps-reset-gone-wrong (http://www.buellxb.com/Buell-XB-Forum/Do-It-Yourself-Buell-Mods/-tps-reset-gone-wrong)
bike-idiling-ruff (http://www.buellxb.com/Buell-XB-Forum/Buell-Firebolt-XB12-XB9/bike-idiling-ruff)

[J_Undisputed]

Thanks Native,
I did one reset on the stock map before applying the race map values. It ran well after that. Then when I applied the map values, it ran well at 140C but stumbled and idled low and rough and would stall without cracking the throttle open slightly till the temp warmed up to 140. So I we figured, lets do a TPS reset after being we changed the values on the map and to see if the idling need to be adjusted at 140C. The post burn TPS seemed to have no effect on the stumble. Wondering if I really held it to tightly closed to get to 0.0 the second time. A friends bike would bottom out at 0.8, so we didn't go past it (aside from the 2 additional turns of the idle screw) and used it as 0, and his bike runs well. Does that seem normal?