It start then stumble for couple second then come back to normal......when hot no issue....tried lot of dc start up change and didn't help...someone have an idea?
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It start then stumble for couple second then come back to normal......when hot no issue....tried lot of dc start up change and didn't help...someone have an idea?
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Your cold start data log dops to 2700psi possibly falling outside the minimum pressure required to actuate the injector where you hot data log doesn't. You're also making 15kpsi on startup then it appears to overcorrect this over shoot when cold where hot it doesn't. That's almost 3x above commanded pressure on both logs.
Yup im at this conclusion too...but dont find how to "fix" it
It's in the PID loop control for your pressure control valve. Usually the derivative value will need to be lowered a bit, that's the error rate of change it'll target for it's final correction. Since it's over shooting it'll require reducing. check out this ivdeo https://www.youtube.com/watch?v=wkfE...channel=MATLAB to help visiualize it. Also Post your tune and ill see if i can find the appropriate table.Quote:
Originally Posted by MAIDENCR
thats a darn handy youtube
Btw there may be other tables at play here causing a worse reaction when cold, like adding something to the control loop. I don't tune dodges But there is no doubt that going from one pump to two will require some massaging of the control loop to get factory like desired results.
Hum will look into that to see
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look at regulator pidQuote:
Originally Posted by JaegerWrenching
post a tune file even your stock one so i can at least see all the tables available and not have to zoom inQuote:
Originally Posted by MAIDENCR
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here is my tune and stock tune
Issue fixed....controller didnt had power at start position and it would spike rail pressure during cranking
Did it also fix the dropping too low issue as well?Quote:
Originally Posted by MAIDENCR
Fixed everything