l94

  1. Hashiriya

    AFM delete kit 13 Yukon Denali L94

    Hello all! I just purchased a 13 Yukon Denali with 120k on the clock. I am trying to do a AFM delete since I just found out about the system being prone to failing. I apologize if some of these question have been answered already, I’m super new to GM products, so coming from the JDM Honda scene...
  2. K

    Better startup with higher ethanol

    2011 Yukon Denali L94 6.2 Flex Fuel 160k miles... I had some stumbling on a dead cold start up after filling the tank a while back. Cleaned the throttle body and it ran better for a bit, I think it just brought up the idle till it recalibrated. Then I ran a tank of ethanol free premium and...

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