5.3 LS4, E67 ecu, negative LTFT's on WOT, unusual LTFT boundaries?
07-28-2015, 08:31 PM
#1
5.3 LS4, E67 ecu, negative LTFT's on WOT, unusual LTFT boundaries? Was doing some datalogging today and noticed something very unusual about my runs today, I was getting -1.3 in my LTFT column for the entire pull while in PE mode. When I looked into further settings for LTFT's i found that the factory settings for LTFT boundaries seem to give me virtually no clarity, or have completely unreasonable settings for values that I will never see.
So two questions remain, should I experiment with the LTFT boundaries like I read in this other threads, with settings of 1000,2000, 4000 in the RPM columns, and associated map values (60/70/80 because of low engine vac from a cam). And what to think of this negative LTFT value while in PE mode under WOT. Thoughts?
So two questions remain, should I experiment with the LTFT boundaries like I read in this other threads, with settings of 1000,2000, 4000 in the RPM columns, and associated map values (60/70/80 because of low engine vac from a cam). And what to think of this negative LTFT value while in PE mode under WOT. Thoughts?
