2013 Street Bob build specs in sig..
I've been having a little difficulty trying to get a really good tune into my bike after the 117 build.. I can configure the VE's to get me close but when i try to find tune them the AFR's go too rich and I get a little spark knock at time above 80Kpa.. I just don't seem to get consist AFR's from data log to data log...

So what I decided to do today was disable closed loop on the Power Vision and with my most current tune that was already loaded into the ECM take a ride and do a data log.. On my first ride while logging I was monitoring front and rear AFR's on the PV screen and they were running a bit high..14-15.5.. So I pulled over went into Quick tune and increase the low range fuel by 3% and that seemed to do a good job.. I also increased the midrange by 3%as well.. I continued data logging and made sure i was able to log the entire TPS range.. Even did a test hit in 3rd gear at 30 mph up into 5th gear@120 mph.. I was very surprised to see my AFR's were actually pretty good and as load increase the AFR's decreased to 13.1 from 4000 rpm and up... I'll attach my data log for accurate info if any one is interested..

I felt good about what I saw but here's the thing, the same tune with closed loop enabled would produce spark knock but not when I disabled closed loop.. To disable closed loop I set my enable point to 102 kpa and disable point at 101 kpa but the O2 sensors would still give real time AFR's and my VE table was still being corrected by the ECM. So with this information I'm going to use my data log to try to get my VE tables as close as possible to the new VE settings that the ECM is adjusting to to try to hit my target AFR,s.. I'll post a picture of those as well..

Question is, can I just run my tune with closed loop disabled in the PV all the time because the system seems to follow the VE tables very well and it appears that my targeted AFR's are more consistent.. And I like the benefit of no donation..

I do know that I will need to increase my low and midrange VE's by 3% and when i do i will do another data log..