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Thread: help with a tuning questions

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  1. #1
    Join Date
    Dec 2008
    Location
    South Carolina
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    794
    what injectors are you using? Are they aftermarket? If so do you have the right injector data? Are you running a MAF?
    2008 GMC Sierra SLE....370ci LY6 with some goodies SOLD
    1995 C2500- LS1 swap with a mp112
    build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html

  2. #2
    Join Date
    Dec 2014
    Posts
    8
    stock injectors, the whole thing is stock. And yes sir the MAF is there and plugged in!

  3. #3
    Join Date
    Dec 2008
    Location
    South Carolina
    Posts
    794
    what happens when you run open loop? does it still run rich?
    2008 GMC Sierra SLE....370ci LY6 with some goodies SOLD
    1995 C2500- LS1 swap with a mp112
    build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html

  4. #4
    Join Date
    Dec 2008
    Location
    South Carolina
    Posts
    794
    and you have the right tune file in the pcm right?
    2008 GMC Sierra SLE....370ci LY6 with some goodies SOLD
    1995 C2500- LS1 swap with a mp112
    build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html

  5. #5
    Join Date
    Dec 2014
    Posts
    8
    Quote Originally Posted by chvy=power View Post
    and you have the right tune file in the pcm right?
    I have not done that and yea its the stock file from the truck it all came from.

  6. #6
    Join Date
    Dec 2008
    Location
    South Carolina
    Posts
    794
    run it open loop and see what your o2 readings are
    2008 GMC Sierra SLE....370ci LY6 with some goodies SOLD
    1995 C2500- LS1 swap with a mp112
    build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html

  7. #7
    Join Date
    Dec 2014
    Posts
    8
    I will try this, and the dang O2 readings were actually in he green on the vc scanner if I remember right.

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