Daytona Twin-Tech TCFI tuning

[nw_guy4_fun]

Sure have a look, change the .txt to .dat to view with the TCFI software.Attachment 42498

[andycerni]

Originally Posted by GRock

And there you have it!...............

Just a little more info guys, because of the inter-action between the IAC and other sensors and the dependence on some of these to go to look up tables when they get "confused", any time you have an unstable IAC condition, there is a good chance it is either looking for more or less (almost always more as the TCFI needs to have a readout of about 11.5 to 12.3 at 0% to be happy) fuel as the IAC will try to correct by closing more but the static algorythmic tables will be telling it to do something else. They basically battle back and forth on which calc to go to. Hence, the back and forth with the IAC stepping up and down that will cause the bike to run like crap or even to shut down because of lack of fast enough correction when these conditions are in the extreme. With this system we have learned that MORE fuel at idle will correct more than a few inherent quirks in the TCFI. It will also give you a good starting point to manually smooth the fuel tables starting from 0% as we have all learned that the 2.5% row also is not handled well by the BLM.

I have the IAC perfectly steady, with no changes during long runs at 40. What does this mean ? Am I to lean at all the RPM and Throttle positions ?
The only defect I have, is an hick up(not very frequent) when accelerating to downshift.
Thank you for the help

[Curtis Shipp]

If you have a DTT MAP that you are happy with please send it to my e-mail at Curtismachine967@Bellsouth.net along with a description of your build. I am putting them in a file by builds for others to use. Thanks for all help in advance.

[SpikeCT]

Curtiss,
I tried your map and noticed the hesitation is significant just off idle.... There is something in there that the system doesn't like.....
Ill attach my current map for 95" HQ, 575 cams, 10.5:1, big sucker, rineharts TD
This map is not perfect yet but it is close.... Almost ready to chuck it on a dyno to see..... and adjust from there....
I get no issues starting, hot ro cold (unless I forget to press the decompression buttons then its just a lug to get it going and as we know the starter doesn't like that....
The timing is pretty good but I need to do some smoothing... Any suggestions please send them back as I take all comments well.... ok lets be honest... sometimes....
lol
**** EDIT****
Just for some background on the timing... I live in Houston so its friggin hot... I tried the HQ timing map and ended up with this current one... I have actually taken one from a friend and modified it and it actually ends up almost identical to the current one.. So the timing I am pretty satisfied with.. I am getting 40-41 mpg and thats with hammering in there....

[Curtis Shipp]

Originally Posted by SEDELUXE

Hey Curtis do you have any maps for a tw6 build???? im still debating if im going to run the dtt with my new build.

Any proven map will work with your build with adjustments. The AFR will be the same regardless of the build. If the cams build lots of cyl pressure at lower RPM you need to remove timing. You will need to start with your Alpha-N's high to start and and let the BLM's tell you where the alpha map need to be. Starting and warm up will take the most tuning, but Live View will help get this right. All of these auto tune FI systems take a lot of time and riding to make right for your riding style. A dyno helps, but on road is the best way to tune in the real world. For a MAP for your build I will give you one that is close and with help from the forum you can make it right.

[Curtis Shipp]

Originally Posted by SpikeCT

Curtiss,
I tried your map and noticed the hesitation is significant just off idle.... There is something in there that the system doesn't like.....
Ill attach my current map for 95" HQ, 575 cams, 10.5:1, big sucker, rineharts TD
This map is not perfect yet but it is close.... Almost ready to chuck it on a dyno to see..... and adjust from there....
I get no issues starting, hot ro cold (unless I forget to press the decompression buttons then its just a lug to get it going and as we know the starter doesn't like that....
The timing is pretty good but I need to do some smoothing... Any suggestions please send them back as I take all comments well.... ok lets be honest... sometimes....
lol
**** EDIT****
Just for some background on the timing... I live in Houston so its friggin hot... I tried the HQ timing map and ended up with this current one... I have actually taken one from a friend and modified it and it actually ends up almost identical to the current one.. So the timing I am pretty satisfied with.. I am getting 40-41 mpg and thats with hammering in there....

What year is your bike? What is the injector size? Do you have any port work? I am looking your map over and will make some changes when I know more.

[SpikeCT]

Its and 0six(sorry laptop keys are crapping out,i need to go buy a new one) twenty five degree injectors, like i said its an HQ build so head work has been done.
Im going to fling this laptop off the 3rd floor balcony. of course after i get my maps off....
It is running really well and not an issue with pulling the front end off the ground. im getting 40-41 mpg, no start issues hot or cold.
Thats the nice thing about this system you can try others things.

Thanks again

[kstitz]

I have been having an erratic cold idle for awhile, after it warms up its fine. Went for a ride on Sunday and bike ran great until I was 30 miles from home. It started with a very lopy idle and the engine light came on. By the time I got home it would hardly run under 3k rpms. and would not idle.
Here are the error codes:
PO373 CKP Signal Lost
PO374 Cylinder ID Fault
PO134 Front WEGO Low/Open
PO374 Cylinder Sync Lost

How do you adjust the IAC?
Do I need to recalibrate the WEGO sensors?

Thanks, Kelly

[wkohn]

Originally Posted by kstitz

I have been having an erratic cold idle for awhile, after it warms up its fine. Went for a ride on Sunday and bike ran great until I was 30 miles from home. It started with a very lopy idle and the engine light came on. By the time I got home it would hardly run under 3k rpms. and would not idle.
Here are the error codes:
PO373 CKP Signal Lost
PO374 Cylinder ID Fault
PO134 Front WEGO Low/Open
PO374 Cylinder Sync Lost

How do you adjust the IAC?
Do I need to recalibrate the WEGO sensors?

Thanks, Kelly

I had the same problem. Several of my posts in the harness did not seat all the way. Try checking all of them first before re-adjusting anything.

[kstitz]

WKOHN, do you mean the main wiring harness to the ecm?

Kelly

[kstitz]

I checked the harness and it looks good.

Kelly

[SpikeCT]

Connect up and check live view... is your tps settings correct... Start it and look at your iac... even better download your log file and look at it....

[wkohn]

Originally Posted by kstitz

WKOHN, do you mean the main wiring harness to the ecm?

Kelly

Yes, But take a paperclip and push each one that you added or moved just to make sure they have locked in place. I had checked mine and they all looked good until I pushed on them with a paperclip.

[kstitz]

I double checked the harness and individual wires. The TPS reads 5.0 when it is trying to idle and the IAC hangs between 85-100 and goes as high as 116.
Any suggestions?

Kelly

[SpikeCT]

Ok, Your IAC is wacked. You need to adjust it back to around 30 and adjust your tps back to the middle of the green zone....
Your not the first one to have an issue with this. Check for an intake leak, make the adjustments and you should be good to go.. Add some loctite to the TB adjuster and or use a jam nut. When at warmed up temperature the IAC need to be correct otherwise it throws off everything,

Good luck

**** EDIT****
One thing a was just thinking is what TB are you using. I know the HP inc are known for a broken butterfly shaft I would check that if your running one. just take off the air cleaner and push on the butterfly to see if it moves on either end of the shaft. usualy the tps side if it is.