LS2 MAF Tuning Plot Filtering Question

[Cyclone Chris]

This weekend I plan on doing some extensive tuning. In order to dial in / Cal the MAF Hi / Lo Freq's I have the attached cfg file. I'm basically have the following Histograms loaded.

1. Main Spark - Timing Advance
2. Main Spark - Knock Retard
3. Maf Freq Lo - LTFT
4. Maf Freq Hi - LTFT
5. Maf Freq Lo - AFR
6. Maf Freq Hi - AFR
7. Maf Freq Lo - AFR % Error
8. Maf Freq Hi - AFR % Error

My questions are:

1. Do any of these Histograms need any plot filtering and/or Cell Hit Count?
2. If I'm using a wideband, after scanning do I paste special the AFR % Error to the Hi / Lo Freq Tables?
3. If not using a wibeband, how do I apply the changes in the editor?
4. Should I use LTFT or STFT if not using a WB?

Sorry for all the questions, but I can't find much tuning info for the E40 PCM's that is newb friendly. Your help is greatly appreciated.

Let me know if you need any other info.

[EC_Tune]

1a) To have MAF Hi you need to filter any MAF Hz below 5800 out of the table.
1b) I like to have a "few" hits in a cell before I call it "learned". It's hard to get an average of 1.
2) Yes
3) LTFT and add a filter to the HI table like Commanded AFR PID# >=14.6
4) STFT with filtering of at least 10-20 cell hits to get a good average. I like to have at least 50 cell hits when doing MAF. (a bit less at high RPM... )

[Cyclone Chris]

Then, are my histograms correct above if tuning with a WB?

So Basically all I need for those histograms are the following filters

MAF Hi LTFT: [SENS.80] > 5800 [PID.6000]>=14.6
MAF Lo LTFT: [SENS.80] < 5800
MAF Hi AFR Error: [SENS.80] > 5800

Now if I'm tuning without a WB I should go ahead and do the following:

Maf Hi STFT: [SENS.80] > 5800 [PID.6000]>=14.6
Maf Lo STFT: [SENS.80] < 5800

[EC_Tune]

Yep, you want to use the AFR Error histos if you are wideband tuning. If you are in open loop that is.

If closed loop monitoring AFR ERR%, then add: "AND [PID.6000]<14.6" that way it filters out the closed loop LTFT/STFT stuff and only logs AFR Error% when you are in PE.