06 cummins rail pressure hanging!!!!! BAD!!!!!

[doostan]

so I loaded a pretty basic tune, basically some more rail pressure, timing and duration. Go and drive it and at about 1400-2000rpm with about 5-15% throttle, let off suddenly and rail pressure hangs up for about 5 seconds. Adjusted the rail pressure down at that range and no change. Tried messing with the FCA pids and not any real change. Tune was started off a stock tune on EFI live tune library. Any ideas???? sorry don't have a log on hand but can get one

[06megatuned]

Tune file depot? Did you get the right os?

[doostan]

Yup same ecm number and year

[06megatuned]

How far down rpms did you change rail pressure?

[doostan]

At first I just smoothed out the spikes down low but after the first test drive I returned it back and only adjusted above 2000rpm

[06megatuned]

I would load the same tune in but fresh unmolested and see how it runs, then adjust rp higher rpms and higher mm3.

[doostan]

Sounds like the plan for the morning and i will get a log if it still acts up.

[06megatuned]

Good luck, with tuning the "scientific method" will help.

[2007 5.9]

Rail pressure MAY not be what your experiencing hang from....it may be the effect, not the cause. Look to your pulse again.....

[doostan]

here is a log of it hanging
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