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Thread: New to EFILive, Help increasing AFR

  1. #101
    Joe (Moderator) joecar's Avatar
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    Also do this:
    - disconnect the NGK from your FlashScan;
    - connect the AD1+ pin to the AD1- pin and see what the pid EXT.AD1 says (in volts);
    - connect a 1.5V AA battery to the AD1+/- and see what EXT.AD1 says, and at the same time measure the voltage using a DMM;
    - tape two 1.5 AA batteries together, and repeat;

    post the results here (what EXT.AD1 says and what the DMM says) for those three cases:
    - AD1+/- shorted:
    - 1.5V AA battery:
    - 3.0V AA battery:

  2. #102
    Member sonicgroove's Avatar
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    Quote Originally Posted by joecar View Post
    Also do this:
    - disconnect the NGK from your FlashScan;
    - connect the AD1+ pin to the AD1- pin and see what the pid EXT.AD1 says (in volts);
    - connect a 1.5V AA battery to the AD1+/- and see what EXT.AD1 says, and at the same time measure the voltage using a DMM;
    - tape two 1.5 AA batteries together, and repeat;

    post the results here (what EXT.AD1 says and what the DMM says) for those three cases:
    - AD1+/- shorted:
    - 1.5V AA battery:
    - 3.0V AA battery:
    Joe does this mean my epiphany was really the epitome of fail, lol... I thought I was beginning to understand but if I am wrong, please let me know so I can rid that information from my head.

    I will do that right now and post the results.

    -Shaun
    1987 MAZDA RX-7 LS1 T56 | 1995 MAZDA RX-7 ST PORT BOLT ONS ADAPTRONIC PNP | 1994 MAZDA RX-7 TSP 416 LS3 T56 MAGNUM E40 ECM

  3. #103
    Member sonicgroove's Avatar
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    Here are the results of your request.

    (2) Sanyo Eneloop AA Battery
    Innova 3140 Digital Multimeter

    V2 Readings:

    EXT.AD1 reads: 0.01v, When powered and nothing attached to AD1,
    EXT.AD1 reads: 0.01v, When polarity is reversed
    EXT.AD1 reads: 0.01v, When AD1+ is connected to AD1- (Terminals loops)
    EXT.AD1 reads: 1.42/3v with Battery A; DMM reads: 1.413v
    EXT.AD1 reads: 1.42/3v with Battery B; DMM reads: 1.417v
    EXT.AD1 reads: 2.84/5v with stacked batteries; DMM reads: 2.832v

    -Shaun
    1987 MAZDA RX-7 LS1 T56 | 1995 MAZDA RX-7 ST PORT BOLT ONS ADAPTRONIC PNP | 1994 MAZDA RX-7 TSP 416 LS3 T56 MAGNUM E40 ECM

  4. #104
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by sonicgroove View Post
    Joe does this mean my epiphany was really the epitome of fail, lol... I thought I was beginning to understand but if I am wrong, please let me know so I can rid that information from my head.

    I will do that right now and post the results.

    -Shaun
    We just want to sanity check everything (sorry, what idea...?).
    Last edited by joecar; March 5th, 2013 at 12:18 PM.

  5. #105
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by sonicgroove View Post
    Here are the results of your request.

    (2) Sanyo Eneloop AA Battery
    Innova 3140 Digital Multimeter

    V2 Readings:

    EXT.AD1 reads: 0.01v, When powered and nothing attached to AD1,
    EXT.AD1 reads: 0.01v, When polarity is reversed
    EXT.AD1 reads: 0.01v, When AD1+ is connected to AD1- (Terminals loops)
    EXT.AD1 reads: 1.42/3v with Battery A; DMM reads: 1.413v
    EXT.AD1 reads: 1.42/3v with Battery B; DMM reads: 1.417v
    EXT.AD1 reads: 2.84/5v with stacked batteries; DMM reads: 2.832v

    -Shaun
    Ok, looks like AD voltage reading is correct within 1% (at zero) or 0.5% worst case... so it should be ok.

  6. #106
    Member sonicgroove's Avatar
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    Quote Originally Posted by joecar View Post
    Ok, looks like AD voltage reading is correct within 1% (at zero) or 0.5% worst case... so it should be ok.
    JOE! I got DFCO to woork! Decel richness corrected! Apparently the settings were not ideal for my setup/environment for DFCO to turn on. Made some aggressive changes and went for a drive and bam! Like instant breaks and wbo2 reading super lean. Since enablers work now I am going to reset TPS and map enablers to stock settings. Hopefully it still works. Here is the log file that shows the values. For the first time, I am seeing lambda values above 1... wow... All that is left is if you could confirm my sanity check. LTFTs trim toward GM.EQR 1 which is defined by afr entered in b3601. So in my case, it would be 14.3? So calc.vet tuning uses ltft to fine tune main VE table for a afr of 14.3 or EQR1. Then OL/PE uses commanded fuel (B3601, B3605) which is also based off GM.EQR1/B3601. IE 14.3/1.13= 12.65afr.

    LS1B_0011.efi
    1987 MAZDA RX-7 LS1 T56 | 1995 MAZDA RX-7 ST PORT BOLT ONS ADAPTRONIC PNP | 1994 MAZDA RX-7 TSP 416 LS3 T56 MAGNUM E40 ECM

  7. #107
    Joe (Moderator) joecar's Avatar
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    Hi Shaun,

    In BBx pidlist for logging calc.vet, click the V7 button and add the following pids:
    CALC.AFR_NGK1
    CALC.WB
    CALC.DAT
    CALC.VEN
    CALC.VET

    save to file, and program to V2.

  8. #108
    Joe (Moderator) joecar's Avatar
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    LS1B_0011.efi is a good log, wideband signal looks very good, looks like it is working right...

    use this log to do one iteration of Calc.VET...


    make sure the transient filter filters out closed throttle.
    Last edited by joecar; March 6th, 2013 at 08:59 AM.

  9. #109
    Joe (Moderator) joecar's Avatar
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    The Calc.VET procedure does this:

    - filters out transient air conditions (when you apply the transient filter)(which also filters out VE contribution);
    - corrects the MAF using LTFTBEN (CL=1) and WO2BEN (CL=0) [ i.e. multiplies existing MAF by the BEN correction factor ];
    - calculates the VE from the corrected MAF (using IGL equation) [ i.e. calculates a new VE from the corrected MAF ];

    take note of how the words "correction" and "calculation" are used;

    to apply the MAF correction: do paste-multiply (with-labels) of the CALC.SELBEN map into B5001,
    to apply the VE calculation: do paste (with-labels) of the CALC.VET map into B0101,

    ( always use the with-labels variants of the paste commands to ensure that the pasted map is correctly aligned in the table ).

  10. #110
    Joe (Moderator) joecar's Avatar
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    Your IAT (and consequently CALC.DAT) is high... can you replumb for cold air...?

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