No, you can not make your own mappings.
Rexxer creates mappings and you can load it by your own with the Rexxer Evo.
Throttle problem/Surging
- Thread starter HyperPhil
- Start date
No, you can not make your own mappings.
Rexxer creates mappings and you can load it by your own with the Rexxer Evo.
Man, all of a sudden mine is backfiring like crazy. Be coming up to a light and it sounds like a top fuel funny car.
Could be too much fuel. Hard to say.
Pics of the fuel pump cover you were confused about?
Curious why you went with a power commander, because it is not going to affect the closed loop portion of fueling for long. The ecu will override any changes you made.
And it definitely sounds like it's getting too much fuel btw. Drowning in it. Maybe something made the power commander glitch and the settings got messed up? Tomorrow I plan to re send the map again for sure.
I can have pics for the fuel pump cover tomorrow.
I can have pics for the fuel pump cover tomorrow.
From 0-14% throttle and 0-6000RPM, the bike uses the O2 sensors to adjust the fuel ratio to a target of 14.7:1 for emissions reasons. When you add the power commander, which adds 8% fuel in this range (I looked at the PC map), it's going to run richer for 10-15 miles until the bike adapts and tries to achieve 14.7:1 again.
Other tuning methods can get around this. The rapidbike fools the bike to think it's running at 14.7 and so it stops trying to adjust, and the rexxer disables the O2 sensors altogether. This is the reason i did not go with the power commander even though they are very well known.
The popping could be running rich in the midrange and running lean at the bottom end as you come to a stop, so the extra fuel is just burning in the exhaust. Hard to say really.
are you saying that after 15 miles it will stop?
and are you saying that a PC only works for 10-15 miles and then the bike adjusts itself back?
and are you saying that a PC only works for 10-15 miles and then the bike adjusts itself back?
As I was riding the other day and swapping between urban and sport it occurred to me that it didn't really make sense that there could be two maps at once. Is that true? Would the switch from sport to touring etc mess with what the PC is doing? Or vice versa?
Yes it does. Perhaps a little more than 15 miles but it will eventually learn it's delivering more fuel than it should and it'll adjust.
Yes and no. PC would still be beneficial in "open-loop" situations like hi rpm,big throttle openings if you have a free-flow air filter and/or end can installed.
If you want the PC to work in closed loop you need the optional Auto Tune kit with wide-band O2 sensors.
If you want the PC to work in closed loop you need the optional Auto Tune kit with wide-band O2 sensors.
PC wide band wont work because it doesn't replace the stock O2's. You'll have 2 systems fighting each other for control.
Open loop is simply, the computer sees you are at this rpm and this throttle opening, squirt this much fuel in.
Closed loop actually takes feedback from the O2 sensors in the exhaust and adjusts the fuel ratio to try to achieve 14.7. Thus, the loop is 'closed' cause it knows what it's doing.
Will the auto tune eliminate the bickering? I seem to remember it not being compatible because it's closed loop. I remember also that some features aren't available on ducatis due to,it being closed loop.
Maybe dyno have it set up properly?
Maybe dyno have it set up properly?
Autotune wont work like I said. Dyno won't work cause you can't affect the closed loop portion for any length of time.
So remove the power commander, basically? Which is okay (money isn't...) because I have to disassemble it all to put the fuel line and tank back on properly.
You could have it Rexxer tuned to disable O2's, and keep the power commander.
I hate to ask again, but can you explain what that would entail? I know nothing about rexxer. I'll go read up.
It's going to entail more money
You could go with the Rexxer Evo User. That's what I'd do. Gives you all the diagnostic abilities in addition to disabling O2's. $500
i don't mind spending money, i just want the damn thing to run properly! Isn't there a Ducati race ecu that would eliminate all this as well?