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Thread: desired vs actual rail pressure issue

  1. #1
    Advanced Tuner MAIDENCR's Avatar
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    desired vs actual rail pressure issue

    I started to tune my truck....start and run "fine" if im easy on it.....if i ask for more power i have some spike in actual rail pressure while desired ramp up.....and when I let the throttle off pressure fall of really low...sometime engine stall....sometime i need to shut it off and restart it....and pressure is ok....push it a little bit then loose pressure...i joint a datalog

    test4.hpl
    03 cummins,175% flux injectors,dual cp3,s467.7/83 1.00
    Nv5600 with valair triple disc clutch

  2. #2
    Advanced Tuner MAIDENCR's Avatar
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    03 cummins,175% flux injectors,dual cp3,s467.7/83 1.00
    Nv5600 with valair triple disc clutch

  3. #3
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    Have you modified your fca duty cycle and current maps?

  4. #4
    Advanced Tuner MAIDENCR's Avatar
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    Yes...but the duty cycle may be not correct

  5. #5
    Advanced Tuner MAIDENCR's Avatar
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    You know how Jim P??

  6. #6
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    No experience tuning dual cp3, I would follow what Paul B said in your other post in regards to duty cycle to current. As far as base duty cycle map, again no experience with dual cp3 tuning. Hopefully someone with that experience can chime in

  7. #7
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    Maidencr, did you get this figured out yet? If not I can help. Email me @ [email protected]

    Jon

  8. #8
    Advanced Tuner MAIDENCR's Avatar
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    Email sent