03 xb9 missfire at full throttle

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nice find Chicknstripn...wonder what the part number is aside from the throttle body assembly, the parts catalog does not break it down
 
I'm not sure how it all works but I talked to Al about his parts availability and he can only carry certain parts that the big "motor company" doesn't. Otherwise I'm sure there would be a breakdown in the manual and that idle adjustment nob/cable could be ordered from a local dealer. Hell for all I know a dealer can get it. I just try and do everything I can to stay out of such establishments. That's why I'll order from
ASB even though I have a dealer less than 15min away.
Talk about a tangent.....
Wait it's called a thread jack. Sorry
Anyway apsolus LMK if you want those base gaskets
 
i was lucky to find a buell top end kit in perfect condition and its all there. someone else will need them I'm sure. thanks so much for the offer to send me free gaskets, very nice of you.

i kinda jacked my own thread so no worries haha
 
nothing yet, i only dropped it off yesterday and they told me they would have to let it sit for a couple days. hopefully ill hear something soon.
 
I'm giving them 2 more days, then ill ride in on my magna and be like what!! or maybe the gold wing i want them dynabeads installed in my tires
 
here we go, they just called me and told me my bike is ready for pick up. they stated they reset the tps and that its now working properly. best part half hour labor is all they are charging me. ill report back after my test ride home.
 
rode bike home and its much worse now. facepalm. I'm going to reinstall ecm spy and try and unfuck the situation. now i have a rolling idle from 1000 to 1200 rpm, rough part throttle accell but they actually did correct the full throttle issue sorta. all in all they failed me and lost my business. oh well guess i was only getting lucky till now.
 
im having no luck with ecmspy at all. I cant get it to work. I have a shortcut on my desktop but when I click it I get a small window that opens up and closes immediately. what gives?
 
yall still there or am I talking to myself? I managed to reload ecm spy and now when I hit the icon on my desk top a screen with boxes comes up but nothing else happens. about all I was able to do was a cooling fan test. I have to upload the next step which cost me tons of money like 60 dollars. I need the buecb file. but I cant figure out what a keyfile is!!! it says it needs a keyfile on the activation form. ideas??
 
maybe the cable drivers? have had some issues with getting it started myself...have a shortcut, but I run the disc as well, COM3 seems to be the ticket. make sure the kill switch is set to off prior to anything done on the bike...

1. connect cable from laptop to dongle
2. ignition to on
3. kill switch to run

this sequence is what's prompted when you're getting the connection established, once that's done you should be fine...this is how I do it and works, if I'm doing it wrong...someone please set me straight:D
 
my girlfriend who is much better with computers got ecmspy working. while she was doing that I went and got my money back from Harley.

I found that my tps wasn't set properly and that was what was causing the bike to run so much worse than when I brought it in. I did my best following the directions and now have the bike running just as before, perfect minus WOT. could the tps still be my prob? wot tps shows 4.8 volts someone told me to check my air fuel ratio after a ride and it didn't seem to change if im even looking at the right place. anyone got any ideas?
 
also found codes 21 amc stuck open, amc stuck closed. noting in the manual about dtc 21
 
code 21...[confused] not even listed as one of the codes for an '03 which leads me to say you have the wrong ecm installed on your bike. that ecm has a latched trouble code, an active muffler control so it's flashing it or someone reflashed it with the wrong info.
 
this is the same ecm its always had, and ecmspy shows the ecm is for an 03 xb. active muff control, like the xb12? it is a race ecm and says "for race use only" thanks for that info about AMC. let me go see...
 
I found some stuff on the amc but they were not selectable. I did find something that was selected that was labeled something like a full throttle limiter??? lol I deselected it and will test ride tomorrow.
 
like its gonna do anything..phhh!! off to bfast with my newborn baby and girl then ill ride off and see whats changed. I also did another tps reset and have it at 5.6 volts this time. ive tried moving it around the acceptable range with no change in results so far
 
still thinking your ecm was programmed with the wrong info, '03 models do not have an AMC installed and that code isn't on the trouble code list either for that year model.
 
I'm with thrstrmech. That code on your 03 xb is like a tech telling you your bike is over heating cause you need a new thermostat. Just doesn't make sense.
Have you owned the bike since new? Did you buy that race ECM used?
How long before you started experiencing your WOT issues had you had the ECM on the bike?
 
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