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  1. 01-04.5 LB7 Duramax Powertrain
    Earlier today I installed a fuel pressure gauge from Glowshift to monitor my AirDog 150. I bought and installed the 8 psi spring from Vulcan Performance. My gauge reads a minimum of 12 psi while the engine is under load and about 14-15 psi while idling. Since I installed the 8 psi spring I...
  2. General Discussion
    My airdog 1 150 went out a couple of months ago, wondering if it is bad on the cp3 to be run without lift? dont want to drain the rail and wear the pump or anything. run stock program dont have a tune