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Thread: Need advice

  1. #1
    Potential Tuner
    Join Date
    Apr 2020
    Posts
    7

    Need advice

    I had a diablosport trinity tuner I completely removed the tune using the diablosport and unmarry the device. Then I tried to use Hp Tuners but said failed to read. Could this be because of the previous tune. Do I need to have my PCM flashed by a Tech 2? Thank you! 2006 Silverado 5.3 flex fuel ccsb

  2. #2
    Potential Tuner
    Join Date
    Dec 2014
    Posts
    8
    Hello, have you tried using low speed communication? I had an 05 avalanche that would not read on high speed mode.