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  1. 01-04.5 LB7 Duramax Powertrain
    Have 03 GMC 2500hd Duramax 107k miles. Crank no start. Removed factory fiuel filter and pump. Installed FASS lift pump and filters. Shows only 500 lb. Fuel pressure at cranking. Will start with either and runs fine. Have replaced: Truck cranks but won't start. Fuel pressure is only...
  2. 06-07 LBZ & LLY Duramax Powertrain
    I just fully deleted and tuned my lbz duramax will the HSP high flow bundle kit, and for some reason the truck now gives a check engine light (P0087) after 3,000 rpms. And I cannot figure out the problem. I just brought the truck in august with 275,000 miles on it. And it does have a airdog...
  3. 06-07 LBZ & LLY Duramax Powertrain
    Hey everyone, I have a 2007 Lbz creeping up on 190k miles. truck has been tuned through Ppei for the last 20k miles. I recently started having low fuel rail pressure. So far I have changed the fuel filter, and installed a Ppe race plug. In the 150 tune im seeing 26k desired rail pressure and...
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