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Thread: OBD logging and real-time histogram

  1. #31
    Fuel Injected! woody80z28's Avatar
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    Quote Originally Posted by kur4o View Post
    I will try to get the patch done ASAP. I didn`t have much free time recently.

    Stay tuned.
    Hold off on that for a bit if you haven't already started. I've got another BIN manually modified by another member to get PE working. I gotta test that out today. Thanks!
    80 Camaro Z28 - 550hp AFR 383 / T56 6spd (Holley HP EFI)
    91 Beretta "SS" - 260hp 3400 MPFI / HM282 5spd (7730/$A1)
    94 Silverado Z71 - 300hp Vortec 357 TBI / NV4500 5spd (7427/$0D) gone but not forgotten
    01 Silverado 2500HD - stock Vortec 8.1 / ZF6 6spd (0411/8322)

  2. #32
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    $12 -1byte -Air fuel target
    $13 -1byte -11a6 knock retard
    $16 -2byte -114b egr feedback[I will rip the 16bit data straight from the AD readings] stock have some filtering.
    $1c -1byte -1144 AC pressure switch[in case you want to log wideband through AC, or add second wideband]
    $1e -2byte - gm/cyl value used for table lookup.


    I set the patch as this. 16bit value of egr is straight from the AD channel. You need to log some voltages to figure the conversion factor.

    You can use the small program I attached to apply the patch. UNzip to a folder and run from there [.net 4 is needed to run it], click on modify and select the bin you want to patch, click add patches, select the patch and than save the modified bin. You have to write OS for the flash to take effect.
    Attached Files Attached Files

  3. #33
    Fuel Injected! woody80z28's Avatar
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    That is slick as shit! Works nice, thank you. I'm gonna flash that BIN hopefully tmo. The PE is working as of tonight, so I'm finally getting somewhere with this thing.

    Gearhead rules!
    80 Camaro Z28 - 550hp AFR 383 / T56 6spd (Holley HP EFI)
    91 Beretta "SS" - 260hp 3400 MPFI / HM282 5spd (7730/$A1)
    94 Silverado Z71 - 300hp Vortec 357 TBI / NV4500 5spd (7427/$0D) gone but not forgotten
    01 Silverado 2500HD - stock Vortec 8.1 / ZF6 6spd (0411/8322)

  4. #34
    Fuel Injected! woody80z28's Avatar
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    So I got the BIN flashed and I'm getting my ADX set up to try this out. Setting them up is fairly straightforward...until it comes time to figure out the formulas for $119E Air Fuel Ratio and $11A6 Knock Retard. I found the formula for PID68 Target EQ [2/65536 * X], but I'm not confident that's right. I found nothing applicable for a knock retard formula at all. I could try to use the regular spark advance formula I suppose...
    80 Camaro Z28 - 550hp AFR 383 / T56 6spd (Holley HP EFI)
    91 Beretta "SS" - 260hp 3400 MPFI / HM282 5spd (7730/$A1)
    94 Silverado Z71 - 300hp Vortec 357 TBI / NV4500 5spd (7427/$0D) gone but not forgotten
    01 Silverado 2500HD - stock Vortec 8.1 / ZF6 6spd (0411/8322)

  5. #35
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    For afr try x/10 conversion. If you got close to 14.7 at closed loop it is correct.
    knock retard could be something like x/11.378

  6. #36
    Fuel Injected! woody80z28's Avatar
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    So, after trying a few things...I'm pretty much at a loss.

    These PIDs I've tried to add don't work. The custom patched ones such as Target AFR and Knock Retard, but also the standard B1S2 o2 voltage for WBo2 (however, this truck doesn't have a post-cat sensor from the factory). As I'm typing this, it makes me wonder now if I can add another standard PID that this truck should have like B1S1 o2 voltage.

    What I've confirmed is that these PIDs I've tried to add conform to the PID directly above it in the monitor macro for commands (capture attached). So it seems to ignore the PID I added and use the value received from the previous RX. So I can't even test the formulas to see if they are right.

    I'll post a log later with an ADX to show what I mean.

    Ugh.
    Attached Images Attached Images
    80 Camaro Z28 - 550hp AFR 383 / T56 6spd (Holley HP EFI)
    91 Beretta "SS" - 260hp 3400 MPFI / HM282 5spd (7730/$A1)
    94 Silverado Z71 - 300hp Vortec 357 TBI / NV4500 5spd (7427/$0D) gone but not forgotten
    01 Silverado 2500HD - stock Vortec 8.1 / ZF6 6spd (0411/8322)

  7. #37
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    Post the current adx, maybe there is some config issue.

  8. #38
    Fuel Injected! woody80z28's Avatar
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    Ok, log329.xdl and patch.adx go together; both files with reduced go together also. Originally I had the added PIDs at the bottom of the commands list and wondered if it would only receixe X amount of data. So I made another one that reduced the overall PIDs and dispersed them in between the standard ones so they weren't at the bottom of the list. That's how I discovered that the added PIDs get filled in with the data from the standard PIDs immediately before them.

    Hopefully you can discover something I did wrong! haha

    BTW: that b1s1 adx had the wideband charged to just read bank 1 sensor 1 narrowband o2 voltage. It appeared to be correct while driving.
    Attached Files Attached Files
    Last edited by woody80z28; 10 Hours Ago at 01:43 AM.
    80 Camaro Z28 - 550hp AFR 383 / T56 6spd (Holley HP EFI)
    91 Beretta "SS" - 260hp 3400 MPFI / HM282 5spd (7730/$A1)
    94 Silverado Z71 - 300hp Vortec 357 TBI / NV4500 5spd (7427/$0D) gone but not forgotten
    01 Silverado 2500HD - stock Vortec 8.1 / ZF6 6spd (0411/8322)

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