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grom issue

  1. Help Diagnose Issue

    Grom Talk
    I am having an on going issue that cant seem to be diagnosed. The piston, valves, cylinder, fuel line, fuel filter and injector have been replaced. I have an exhaust, TB cam, and an intake. I have had the ECU reflashed as well. The issue that I am having is 4th gear has no power. I recorded a...
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