Reduced engine power Part throttle 18 6.7

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05-27-2019
JaegerWrenching

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Reduced engine power Part throttle 18 6.7

I'm getting a Reduced engine power while going part throttle, roughly 45% on the pedal. It's seems fine until right before 2900-3000 RPM, have had it happen at lower RPM though. I have logged it and noticed that sometimes fuel pressure drops 300PSI around that time but i don't think that's my issue? I have also noticed the driver demanded torque and actual torque start to separate quickly and then it goes into REP. Is there a reason my driver demand goes way up and my actual stays the same? Here is my tune and two logs, one's a WOT log no issue and a REP log, the issue. This particular REP doesn't show it happening first it shows driver demand go up after it goes into REP. I had another where it happened before. Any help or ideas would be nice. I have a suspicion it's something torque table related. Attachment 90163 Attachment 90164 Attachment 90165
06-03-2019
crash01

did you change the torque tables much? from what ive learned they are super finicky, and sorry didnt have time to check ou your logs before i typed this, just figured id add what i was thinking
06-10-2019
JaegerWrenching

Quote:

Originally Posted by crash01

did you change the torque tables much? from what ive learned they are super finicky, and sorry didnt have time to check ou your logs before i typed this, just figured id add what i was thinking

Which torque tables are you referring to? Indicated engine torque tables?
06-18-2019
JaegerWrenching

Update i got it figured out. I had changed the tq tables level 1 and 2 allowed difference, and torque level 2 offset prior and had an issue with them sending the truck into what i believe to be mono turbo mode and it had a dead throttle pedal. I tried undoing the changes and each flash the symptoms of the dead pedal got worse and worse until the truck was almost undrive-able. I reflashed entire and the issue was then fixed. I then reflashed table's level 1 and 2 allowed difference, and torque level 2 offset and now it's happy. Really weird it went bad the first time. Anyways HP is looking into it so we should know shortly. Good news is it's fixed.