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idle surge

  1. 911 Problems Forum
    Sorry in advance for the long post but any opinions/help would be greatly appreciated). I recently picked up a 2006 GMC Sierra 2500HD with an LBZ engine. Truck is 100% stock besides a 4” MBRP exhaust in its current state. Bought the truck needing a fuel pressure regulator because the truck was...
  2. General Discussion
    (Sorry in advance for the long post but any opinions/help would be greatly appreciated). I recently picked up a 2006 GMC Sierra 2500HD with an LBZ engine. Truck is 100% stock besides a 4” MBRP exhaust in its current state. Bought the truck needing a fuel pressure regulator because the truck was...
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