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Discussion Starter #1 (Edited)
I have an 02 lb7. Had Bob Olson tune it yesterday. The rail pressure was good when in park. Under load in gear it would only go up to 11,000psi way under desired rail pressure. I purchased the truck from a guy who said he had an "economy tune" in the truck when i got it from him. Turns out that the tune was cranked and was pushing about 500hp. The guy who tuned it last pretty much minipulated the truck to run, otherwise on a factory stock tune it would have fallen on its face. The trucks injectors were replaced about a year ago. No white smoke on start or driving. The previous owner also installed an airdog 165 on it about a year ago, never changed the filters. I plan on changing all fuel filters and seeing if that could make a difference at all? I have a new cp3 ordered also. If you have ever heard of this problem or signs of a bad cp3 please let me know.

Christian
 
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