EFILive/Flashscan Guys - No More MAF Spreadsheets?
07-12-2005, 06:40 PM
#1
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EFILive/Flashscan Guys - No More MAF Spreadsheets? Incase you haven't been on the efilive forum lately, check this out:
post by black02ss
I'll be trying this in the next week or so
post by black02ss
I'll be trying this in the next week or so
Sounds like it might work, I might try that methode after I get my VE table dialed in. 
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07-14-2005, 01:56 PM
#8
For right now, I'm not going to. I'm just gonna run Closed Loop, Speed Density for right now. I tried doing the MAF at the same time as my VE last time, and the trims were way off (I was using RedHard's spreadsheet). So I just put everything back the way it was so I could drive my car to work.
This table is what I need to make it not so damn hard, especially since I'm gonna be running a descreened 85mm truck MAF starting this weekend.
This table is what I need to make it not so damn hard, especially since I'm gonna be running a descreened 85mm truck MAF starting this weekend.
07-14-2005, 02:27 PM
#12
i do MAF and VE at teh same time in SD closed/open loop, no problem. the reason you can do it is because while MAF is ignored in SD, it is still logged. so you gather up your MAF untainted VE values, but at the same time you gather MAF data. you do it few times, and when your VE is nice and smooth, then i combined all the maf data and run a huge calibration with lots of points, yielding a new nice calibration. very simple, very reliable, and you save time.
if you got problems with my spreadsheet, let's talk, email/aim/yahoo is the best way, they're all in my profile
if you got problems with my spreadsheet, let's talk, email/aim/yahoo is the best way, they're all in my profile
07-14-2005, 02:41 PM
#13
I personally don't see how you can take the data from the MAF and use it after you have the VE table dialed in. When you alter the VE table, it will in turn change the values that are represented by the MAF. To me it sounds like circular reasoning. With the method I use, you dial in your VE table to where it needs to be. Its simple, you don't use any values except MAF Hz and the BEN Factor(commanded afr/Actual AFR). Then you take and apply your filter to remove any throttle transitions. This total process can be performed and give you a calculated MAF within 30mins. No need to log several times. The reason you don't log while you are dialing the Ve table is is because the values will change when you adjust the VE table causing the outcome to be off as well.
07-14-2005, 02:47 PM
#14
oh i know it's weird. but you know what? i did them together, checked it out, put stock tune back on, did them separately, and ended up with very close results. do i get it why? no. but it seems to work, i've done it on many cars, and they run fine. the only difference is that doing VE/MAF at the same time takes half the time.
if i was to guess why, i'd say that the data for both are so dirty anyway, that our margins of error are wide enough that the changes we get on the account of doing both at the same time result in changes smaller than our acceptable level of noise. since we can't verify it, (aka create a system with no noise) i'd say just go with it and enjoy the extra hour you saved.
if i was to guess why, i'd say that the data for both are so dirty anyway, that our margins of error are wide enough that the changes we get on the account of doing both at the same time result in changes smaller than our acceptable level of noise. since we can't verify it, (aka create a system with no noise) i'd say just go with it and enjoy the extra hour you saved.
07-14-2005, 03:26 PM
#16
Originally Posted by MeentSS02
Now, how do you go about filtering out the throttle transitions when using the MAF %Error histogram? I didn't think about that, but that would nearly make this histogram ineffective...
07-14-2005, 04:44 PM
#18
Live has a filter that can filter out any fields that you want. If you want to filter out throttle transistions more then 5% per 100ms, you can do so. You can add as many of these together as you wish. You can make one for filtering out WOT data, KR, Part throttle, the choices are endless. You are also allowed to remove data in the scanner that "YOU" feel is unneeded. Weather it be 1 frame or 50, you can manually remove them. Its all in the hands of the end user.
07-14-2005, 05:02 PM
#19
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Efilive can filter any criteria your mind feels is important and you can use the filter to add more than one pid
eg
Filter tps where tps changing more than 5% or kr >0 or rpm > 6800 (rev limiter) and the list goes on
eg
Filter tps where tps changing more than 5% or kr >0 or rpm > 6800 (rev limiter) and the list goes on
07-15-2005, 07:50 AM
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Originally Posted by Black02SS
You are also allowed to remove data in the scanner that "YOU" feel is unneeded. Weather it be 1 frame or 50, you can manually remove them. Its all in the hands of the end user.
Please tell me how to do this. I can't figure out how to even see the individual data points, for STFT for example, without going to dashboard b.