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    I tune a daily driver 16197427 with two Oxygen...

    I tune a daily driver 16197427 with two Oxygen Sensors, the factory O2 sensor and the WBO2. I do not use simulated NBO2 data.

    I tune a daily driver 16197427 with factory default AFR fuel ratios....
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    Attached are more spreadsheet screen shots from...

    Attached are more spreadsheet screen shots from the same combined data logs previously posted.

    Injector Duty Cycle should increase with engine load / engine rpm.

    BLM's and WBO2 data are not...
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    Based on the information in this link:...

    Based on the information in this link: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?81-GM-TBI-Injector-size-color-and-part-numbers ... the 17084327 injector has a factory rated flow of...
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    I tune with closed loop for 16197427 daily...

    I tune with closed loop for 16197427 daily drivers. The attached screen shots show closed loop WBO2 tuning data that has multiple data logs combined, using the same .bin file. The combined total of...
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    I tried using my WBO2 spreadsheet for the...

    I tried using my WBO2 spreadsheet for the newplugs-run.xdl file posted above.

    Most of the data was open loop, so the spreadsheet was not helpful.

    dave w
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    There are two connector plugs to the TBI Coil: ...

    There are two connector plugs to the TBI Coil:

    Usually one of the TBI coil connectors is a 12 AWG pink wire with a 16 AWG white wire. The 12 AWG pink wire needs 20 amp power from the ignition...
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    Timing tables can be challenging. Most of the...

    Timing tables can be challenging. Most of the time, I start tuning with a factory timing table, like the Vortec L31 table I posted a link to and tune from there. Once the stock timing table has...
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    Link I posted to the Stock 1998 Vortec L31 Timing...

    Link I posted to the Stock 1998 Vortec L31 Timing Table: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?1233-1998-Vortec-Timing-Table-(Black-Box-Computer)-Open-Closed-Throttle-ONLY!
    ...
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    Have you seen the gearhead-efi $EE information...

    Have you seen the gearhead-efi $EE information available on this tread? http://www.gearhead-efi.com/Fuel-Injection/showthread.php?335-16188051-and-16181333-PCM-Information-EE-EEB

    In post 10 is...
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    :welcome: Are you able to post the flash from...

    :welcome:

    Are you able to post the flash from the LT1 computer?

    dave w
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    :welcome: The Wideband O2 sensor is a very...

    :welcome:

    The Wideband O2 sensor is a very good tuning tool.

    WBO2 Tuning Information Link: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?5381-Wide-Band-O2-(WBO2-Tuning)-Spreadsheet...
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    :welcome: dave w

    :welcome:

    dave w
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    I noticed the OBD2_28 VDF, but seems odd to me to...

    I noticed the OBD2_28 VDF, but seems odd to me to include both NA 3.8 and SC 3.8 with the same VDF. There is a note with OBD2_28, that the Pontiac SC is not supported. GM typically used a different...
  14. Thanks for the info. dave w

    Thanks for the info.

    dave w
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    :welcome: That's a nice set of tuning tools! ...

    :welcome:

    That's a nice set of tuning tools!

    dave w
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    1227730 $A1 Idle Fuel Table

    I'm working with a Fireo engine transplant, 3.4 V6 using DIS, 1227730 ECM $A1 definition.

    Below are the idle fuel table parameters. It seems like the MPH Above Which can become Idle Fuel is...
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    It appears the 2004 Impala PCM is not supported...

    It appears the 2004 Impala PCM is not supported by TunerCats OBD2.

    See attached screen shot below.

    My initial thinking of using the 2004 PCM was incorrect, my most humble apologies. :doh:
    ...
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    EFI Live ... Bench Harness Tutorial .pdf is...

    EFI Live ... Bench Harness Tutorial .pdf is attached below.

    dave w
  19. MAF output Frquency (Hz) will vary with the...

    MAF output Frquency (Hz) will vary with the amount of AIR flowing through the MAF.

    $EE definition shows both fuel and spark tables are "MAP" vs "RPM" or aka "Speed Density".

    It's challenging...
  20. I used a sample EEHack data log to show / analyze...

    I used a sample EEHack data log to show / analyze the Fuel Trims. (see screen shot below)

    I used TunerPro to show the VE Table (Fuel Table) from a Camaro LT1 .bin file. (see screen shot below)
    ...
  21. I've looked at the 93g5311910.xdl file, see...

    I've looked at the 93g5311910.xdl file, see attached screen shots.

    All Error codes must be fixed before tuning. Error Code Link: http://chevythunder.com/199295_lt1_trouble_codes.htm

    The BLM's...
  22. Hi Vince, I've only worked on a couple 93 LT1's....

    Hi Vince,
    I've only worked on a couple 93 LT1's. I've had success crunching data logs and reprogramming the chips. In the next couple days I'll try to set aside time to look at the .xdl posted...
  23. Hi, I'm in Vancouver WA also. dave w

    Hi,
    I'm in Vancouver WA also.

    dave w
  24. Thread: New Tuner

    by dave w
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    Many gearhead-efi members use $EEHack to tune 94...

    Many gearhead-efi members use $EEHack to tune 94 LT1: http://fbodytech.com/eehack-2/

    The EEHack website administrator is also a gearhead-efi member.

    dave w
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    See Attached. dave w

    See Attached.

    dave w
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