injector

  1. J

    #1 and #5 injectors not firing

    Hi all, I have a 2013 Yukon Denali with the 6.2 engine. It has 115k miles on it. Lost a couple AFM lifters about two years ago, so parked it and just finished installing a BTR cam kit with AFM and VVT delete and a Black Bear tune. It starts and runs, but won’t fire the #1 or #5 injectors. I’ve...

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