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Thread: looking for nv4500/6.0 tune for 1mb pcm

  1. #1
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    Default looking for nv4500/6.0 tune for 1mb pcm

    I put a nv4500 (5 speed) and 6.0 from a silverado in my jeep, its running with a hacked together 6.0/4l80 and 4.8/5spd tune. it all works but i am getting some stalling when shifting/stopping. i have been comparing some manual/auto tunes and have an idea on what to change but starting with the correct tune for the drive train will be 1000% easier..

  2. #2
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    Put a 6.0/manual tune in the PCM and start with that. Finding a 5MT trans segment might be tough and you have to go with a 6MT from like a Vette then change the ratios.
    ~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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    i am looking for factory 5mt / 6.0 truck tune, they exist, this drive train came from one of those vehicles.

  4. #4
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    Post your file up, sounds like you need to do a RAFIG process and dial the idle airflow in. Start with the tutorial on this forum and copy the values from a 5MT tune as a baseline.

    What year/OS are you running?

    If this doesnt work, worst case you could get a VIN from a truck that has the engine/trans setup you want and find someone to flash it with GM SPS and read it out.
    ~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.

  5. #5
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    I'm pretty sure I have one for an '03 -- Just have to get to it.

  6. #6
    Joe (Moderator) joecar's Avatar
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    Keep in mind that with the MT tune the CPP (clutch pedal position) switch selects the P/N or IG idle airflow tables, so you have to tune both (RAFIG and RAFPN) as Erik said.

  7. #7
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    Here's your unicorn.

    2005 Manual 6.0 Truck.ctz

  8. #8
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    Here's another in BIN format -- not really sure where it specifies auto/manual. Wouldn't mind knowing!2004_6.0L_LQ4_4x2_Manual_STOCK.zip

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