Now in your short ride in the low rpm you can clearly see how and where cell tracer goes to on Throttle Lift. Hope this brings to light the need to do the Neutral No Load runs and then go into AFR table and turn those cells Off.Well, actually that was one question I've been saving but since you brought it up...Why tune in Neutral at all? I can hear you face palming all the way from Canada but--wouldn't the engine hit the same cells in 5th or 6th gear while you slowly rolled the throttle open?
I'm willing to just accept that tuning the whole fuel dump stairway in Neutral is simply "the right way to do it" but seems like it could be done as described above more efficiently once you have a grasp of what is happening with the throttle and the path it follows in the table.
I have noticed something similar. If I roll on slow and steady I get a lean figure showing on my gauge. If I hold it there it will auto tune back to 13,5. However if I carry on riding and go back that rpm range I get the same lean result again. If I
Romans - Is there something there in that RPM range?
Story Time, bare with me.
Ok, I've lumped these questions together as they very much relate. First, Rook the staircasing as I have been calling it has to do with fuel dumping after throttle lift.
Now this so called un burnt fuel drove me crazy for years as to Why, Why ,Why the hell is my 02 sensor sending signal of Rich, which in turn references the software, saying bike is running rich.
Soooo, from here I was accepting Trims. Next ride out Same shit running rich on lift. Repeat the same test running rich accept the trims, until my AFR was hitting 18. Grrrrr. Accepting Trims was my issue.
so with head spinning started asking myself why ever accept ? so don't accept, lets just rip it all out call Auto tune a Dud like everyone else,,,, Now that was giving up,,,, NEVER GOING TO HAPPEN ! Sooooo
From here I Scotch Locked a Laptop to my bike. Rolling Dyno is now complete. Cell tracer showed me the whole story but still the information was wrong. I stared at the info for hours,,, and over through my head I ran the test.
My OCD had me changing sensors, running a second sensor, I had a data logger with two 02 sensors running at the same time. I was comparing one to the other then switching sensors out etc. I almost went mad. So I walked away for a bit.
Then the light came on,, thinking sensor is to slow. Software is to slow. But NO, Not really,,,
The Software Is Wrong in it's speed to recognize that forward throttle motion has stopped and throttle lift had begun.,,,, So tuning should have stopped on lift,,,, BUT IT DOESN'T ! So the Bike was still running in the closed loop on Throttle lift. BINGO,,,Eyes open.
Now I know the problem how do I trick the software into knowing I have let off the gas ?. ANS, shut that area off in the AFR Table.
I called this staircasing as this bottom end is where the throttle goes forward backward forward backward. Software goes crazy always pulling fuel as a simulated Rich condition is shown. If you accept trims your bike gets leaner and leaner. Now this issue is in the bottom end where you ride every day.
So in my thought some cars run open loop in the bottom with fueling fixed and run closed loop up top for safety to the motor, so why not do the same ? The Neutral Test was born.
Make sense ?
So is there something in that RPM range ? Answer is yes, adjust your staircase. Blind Auto Tune to that Exact position or this will Haunt your running AFR Forever.
Now a little trick to recognize where this is happening is, always note the large minus numbers in the Exact throttle position.
Remember, 4000, to 5000 is the RPM you ride in the most. Whether anyone cares to admit it Lol. Go forward throttle motion and get your AFR perfect then turn that area off. This will get easier.
Am I rambling here ? I hope I'm making sense and I have answered your questions. This is not supposed to be hard and believe me it's not. I'm hoping to teach you guys something that took me years in a very much shorter period of time.
It's good when you guys ask question, shows me where to begin. i'm sure I have missed some obvious points ???? Work in progress.