Scan Tool to Tune Incorrect Fuel Pressure

[Roc8man]

I noticed that when I open up both the tune I used and a run I logged using that tune, the tune main injection pulse chart always shows the Fuel Pressure at 190 MPa whereas the scan tool log has it much less normally. I've got it shown in the scan tool using metric and I thought someone once mentioned that was the issue. Does anyone know how to fix it so my tune will highlight the correct Fuel Pressure while doing a review of the log file?

Thanks
David

 

[2500HeavyDuty]

if your referring to the b0720 and b0721 tables dont go by the scan tool it lies sometimes, go by the actual rail pressure and fuel main q and trace down on the graph.


according to my log i am holding 140mpa with a 2600pw with a 100+ fuelq main dma and then i go to the b0720 and trace down the cell at the intersection of 140mpa and 100 fuelq main dma and find that i am commanding a 2600pw at that pressure.

the scan tool can sometimes be deceiving when trying the blue highlighted cells to make changes to the tune.

hope that helps