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SEPST - Smart Tune ?

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Old Jan 2, 2011 | 02:28 PM
  #21  
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Originally Posted by 2009blackpearle
Im guessing you mean clb as in closed loop bias. when you dont click reset adaptive fuel and smart tune it wont run in closed loop bias, I believe, pretty sure it runs off the map valves you put in fuel ratio and calculations from ve table to establish a fuel ratio
That makes sense. Thanks! I created a new file and made some adjustments for this setup.

Thanks again for your time!
 
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Old Jan 2, 2011 | 03:14 PM
  #22  
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Originally Posted by 2009blackpearle
Im guessing you mean clb as in closed loop bias. when you dont click reset adaptive fuel and smart tune it wont run in closed loop bias, I believe, pretty sure it runs off the map valves you put in fuel ratio and calculations from ve table to establish a fuel ratio
The clb tables are in use any time a cell on the afr table is set to 14.6. That is the switch that tells the ecm to go into closed loop. Restting the AFV has nothing to do with closed loop. When you enable smarttune you are setting more of the afr table to 14.6 (enabling closed loop)in a larger area than you would normally ride the bike, which is what allows the use of the o2 sensors to collect data for smarttune. The actual afr is determined by the clb setting. Anytime you are looking at a data log the afr you are looking at is the desired afr, not the actual. The AE and DE tables are only active for milliseconds. They are only used for transitional fuelling requirements. The DE table will only work to remove a pop when you back of the throttle. Dealing with decel popping is usually done on the afr table and in some cases the VE tables.
 
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Old Jan 3, 2011 | 08:38 AM
  #23  
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Thanks, Lonewolf.

I'll keep doing recordings/Smart Tune/reflash until I feel I have the VE tables as accruate as I can.

I'm learning so much, so thanks again for everyone's thoughts/input and time.

Have a good one.
 
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Old Jan 3, 2011 | 09:52 AM
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Old Jan 5, 2011 | 07:58 AM
  #25  
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UPDATE: I made some adjustments to my decel enleanment and AFRs to help my decel poping. I looked at my recordings and found where my popings occured (RPMs and MAP). I decreased by decel enleanment by 50% and then dropped my AFR down to 13.9 from closed loop 14.6 @ 20 MAP from 1750 to 3500. This is where the decel poping was happening. I saved a new file so I can go back to the previous one if needed and reflashed the bike and went for a short ride for only 30 minutes due to work today. My decel poping is gone. Still have the normal gurgle you get when backing down due to open pipes that I'm use to.
Makes me real happy. Now that I know how to elimiate the pop, I'll keep doing some recordings and Smart tunes. Then will reflash with Adaptive Fuel option checked and run through 3-4 tanks of gas to let it do some learning of it's own and mearsure my MPG.
Ride safe and have fun.
 
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Old Jan 5, 2011 | 11:44 AM
  #26  
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To remove fuel with the DE table you have to increase the number. If your popping was from 1750-3500 the change on your afr table was what cured it. Try resetting your DE table back and see what happens. When making changes remember to only make one at a time.
 
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Old Jan 6, 2011 | 05:10 AM
  #27  
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Originally Posted by Lonewolf176
When making changes remember to only make one at a time.
Thanks, Lonewolf! I was thinking about that last night and wonder what realy cured it. I'll bring my DE tables back to where it was before.

Once I'm happy with my VE tables and feel I've got some good numbers, is the thinking that we still do VE smoothing (left to right/top to bottom for the cells that we did not hit in the Smart tuning process)? I thought I read somewhere that it may make the map in the higher ranges too lean. Or should I just keep the VE tables and do not do smoothing.

Thanks!
 
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Old Jan 6, 2011 | 09:23 AM
  #28  
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I would blend. The only thing is to blend from the "good" data. The cell you blend from should have seen a minimum of 80kpa and enough hits. the TTS will show this on the vtune histogram but with the SESPT I believe you will have to manually check your data. Another option is to have your 100 map column calibrated on a dyno and then blend to that. It should take less than an hour of dyno time to do that. Some pretty smart people have also recommended once done to increase your complete ve tables by 5%.
 
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Old Jan 6, 2011 | 12:34 PM
  #29  
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Thanks, Lonewolf and everyone else! I appreciate your time, your suggestions and expertise on this.
 

Last edited by Grillfish; Jan 6, 2011 at 12:58 PM.
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Old Jul 10, 2011 | 10:10 PM
  #30  
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Default Pop during roll off and other questions.

Hope to latch on to this post to ask a few questions.
I'm tuning my 08 nightser 1200, with SE air box and supertrapp race megaphones. I did not install the system. recently it has started "popping" on roll off throttle. In low load midrange it'll pop between shifts. After full throttle it pops a lot.
The plugs are pretty white, so I've started to try and adjust the AFR values to add fuel and lower running temps.
I've taken the midrange KPA cells (30-80) from 750 rpm<7000 rpm, from the closed loop values of 14.6 down to 13.0 and left the other cells at the preset numbers. So far, it still pops, the engine temp has increased under full load by about 30 degrees and the plugs are grey instead of white.
I tried a session with the decel deleanment values increased from .500 to .600, but it still has a pop during the millisecond that the decel actions on the graph.

If there is anyone out there that can spare a few minutes to type me through this I would be very grateful. I have been spending time on here searching and reading what everyone has been saying so far, so my apologies if this is somewhere that I've not found yet.
 
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