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  1. R

    LB7 Low rail pressure cause smoke?

    Well my truck is a completely untouched stock California emissions truck so with what you said I'm guessing at idle 30mpa or 4200psi at operating temp sounds about right. I drove it some tonight and rail pressure is going to 23xxx at 16lbs of boost so I'm pretty sure the regulator and cp3 are...
  2. R

    LB7 Low rail pressure cause smoke?

    Yea that's kinda what I didn't want to hear. Was hoping it could possibly be something simpler like a fuel pressure regulator or something. Anything I should do or can do to troubleshoot it further before pulling the trigger on new injectors just to rule out other potential problems?
  3. R

    LB7 Low rail pressure cause smoke?

    Changed the filter out yesterday actually.
  4. R

    LB7 Low rail pressure cause smoke?

    Here's a screen shot of what I'm seeing
  5. R

    LB7 Low rail pressure cause smoke?

    Injectors were done about 30,000 miles ago at the dealership under warrantee. CP3 was done about 20,000 miles ago. I have checked the balance rates and they're all within spec. The rail pressure at operating temperature is hovering around 4100 to 4200 at idle (I thought LB7's we're supposed to...
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