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  1. Z

    turbo codes keep coming back

    pcv and egr havent been done. just got the truck weeks back. p003a is turbo vane position relearn. p2563 turbo vane sensor performance from the searching ive done online i believe the vanes are stuck.. but they still move like 3%, not stuck solid like others are talking about
  2. Z

    turbo codes keep coming back

    2007 classic body style lbz with 125k miles p003a and p2563 i believe they are keep coming up, i will sometimes drive it for days with no codes, and other days it will come back as soon as i start it. well i also notice that my elevated idle isnt quite the full spool up. pulled the vane...