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ecm controller machines

Discussion in 'General Chevy & GM Tech Questions' started by 9191gmc, May 26, 2010.

  1. 9191gmc

    9191gmc Rockstar

    Aside from buying the multi thousand dollar computer programs that the dealers have...
    are ther any machines for sale that can get into the ECM of a car and show and adjust basic settings like timing and idle etc..??? There must be something.....?? maybe a service of some kind...

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