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Thread: Need a Tune for a Gen3 in a Jeep

  1. #1
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    Default Need a Tune for a Gen3 in a Jeep

    Hey guys.
    Im new to all this tuning stuff, but Im in desperate need of one done by a professional.
    I just installed a Gen3 5.3L and a 4L60E tranny in my 05 Jeep TJ. The guys that did the wiring harness for me took stuff out of the PCM like rear O2 delete, Vats delete, and stuff like that, but they said they dont mess with the tuning.
    My Jeep runs like crap now. It does not have any power and I have had it in the shop to see if its the powertrain. The powertrain checks out great and my mechanic said it has to be in the tune.

    SO, Im looking for a tune to not only to delete the regular stuff, but to give me a nice running performance ride.

    Can anyone help? I have EFI Live V2 now, so all I need is a tune...

  2. #2
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    Pull the tune thats currently in it and post it up first, we'll go from there!
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  3. #3
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    Thanks for the quick reply!

    Attached is the current programming Im running.

    These are my must haves:
    No rear O2 sensors
    No Security (VATS)
    4.88 gears
    35" tires
    no oil pressure sensor (running Autometer gauge)

    I would also like the engine tuned to run at its peak performance (without possible engine/tranny damage).

    Thanks for any input!!!
    Attached Files Attached Files

  4. #4
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    Anyone see anything that needs to be changed?
    I would love to drive the Jeep over the holiday break.

  5. #5
    Lifetime Member Boost's Avatar
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    I don't know if this is the best way but if it were me I would just flash the whole thing over with a good equal or newer cal 5.3 tune + the required mods. If the entire powertrain is a standard GenIII I don't really see why it would run bad unless it has a really messed up tune. Should run like a champ actually. Stock 5.3 tunes are a dime a dozen, here is the newest version I have (still needs to be customized for your setup), hope it helps. If not you will need to log and post it.
    Attached Files Attached Files
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  6. #6
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    Thanks. Ill try your tune and change the requirements that I need in it. I noticed you had different shift patterns. Im going to try those too.

    Ill let you guys know how it acts. If it still acts weird, Ill log it and post it.

  7. #7
    Lifetime Member Boost's Avatar
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    No problem. That is a factory tune from an '06 Silverado.
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

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