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AlDAngle

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  1. AlDAngle
    Here is a snip from a sticker with the YK9 option on Build Sheet:
  2. AlDAngle
    IMHO, I find it hard to believe that Chevy would turn off an engine's DFM to reallocate its chip. Especially because no DFM equals less MPG, and GM is very concerned with CAFE Standards. On the other hand, the cam, lifters, and other DFM (DOD) specific parts are still present in the engine. If there is a reliability issue with these parts, will disabling DFM lessen failures?
  3. AlDAngle
    With the hardware still present in the engine, what is the reasoning behind the YK9 modification? Is it being done to reduce the chances of engine issues believed to be tied to DFM?
  4. AlDAngle
    I'm looking at a 2022 1500 that's allegedly "built and on the way". It's equipped with: "L84-Engine: 5.3L, EcoTec3 V-8, DI, Dynamic Fuel Mgt, V V T" The build sheet shows Option Code "YK9-CREDIT - NOT EQUIPPED WITH DYNAMIC FUEL MANAGEMENT" Is this deletion a chip shortage issue, or is Chevy deleting the Dynamic Fuel Management due to engine/lifter issues? Thanks
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