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Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
[quote=peg20;12012875]No. You should try to keep the majority of the map in closed loop so that the ECM can adjust to changing environmental and fuel mixture conditions. This helps the ECM ensure that it's hitting your lambda targets in open loop as well.
If I keep it in "closed loop" wont the norrow band sensors keep me at 14.6 AFR, regardless of my desired 14.2-13.8 table?
I haven't read all 282 pages yet- so this has probably been addressed.
When I down load a custom tune should I go to "open loop"? I have stock narrow band sensors.
If I want to richen up the new tune should I go to enrichment and add globally?
Can I write my own map over the new tune giving AFR values?
Thanks
You can do it either way OL or CL. I guess the real question is why one way or the other. That can only be answered by you. CL has it's place. I'm just not convinced yet that it's PLACE in with a Harley. It may be okay with the new water cooled heads. If you're looking to richen it up to control heat you won't notice much. At best, all it will do is slow down, and only slightly, how long it takes to get hot. If you're in stop and go traffic and it gets to say 325 you won't see it being cooled down by being richer. Like I said, a richer mixture may just slightly slow down the heat increases. Once it get hot, it's just hot.
As far as the CL or OL debate goes, CL is an EPA mandate. The only real way to make the choice is ride it for a while in CL. Then try it at something like 14.0 and see how it feels. I think, from a performance (and I'm not talking hotrodding) standpoint they run much better around 14.0, without sacrficing any fuel mileage that matters much.
No. You should try to keep the majority of the map in closed loop so that the ECM can adjust to changing environmental and fuel mixture conditions. This helps the ECM ensure that it's hitting your lambda targets in open loop as well.
You're gonna have to explain this one...lolIf you have inside information on which AFV cells are being used I really really want to know.
You could, but you'll probably end up just wasting fuel. What are you trying to achieve (more performance or less heat)? Do you always want to sacrifice fuel for performance, or only when you when you rag on it? If the latter, then you only really want to enrichen for power in those parts of the map which (in your riding style) represent you "going for it". sub-3k RPM and small TPS% are probably best left pretty lean.
I would be richening up those areas myself. Then keep the cruise areas on the lean side. It really depends on the bike as far as the lower throttle / RPM areas. Some, depending on the exhaust, just don't have very good manners down low without a little richening up. No one size fits all with the tons of aftermarket parts being put on these things.
I'm not sure what you mean by that question, but the answer is probably yes :-)
still want to know- will CL let me go to 14.0 or keep me at 14.6 with stock narrow band sensor?
On my dresser I have wide band and a great map for lean cruising and rich idle.- but I have wide band.
The above bike is my girl friends and she doesn't want to spring for wide band sensors, and runs hot. I have a map to richen it up-but think I need to keep it open loop to follow map.
still want to know- will CL let me go to 14.0 or keep me at 14.6 with stock narrow band sensor?
On my dresser I have wide band and a great map for lean cruising and rich idle.- but I have wide band.
The above bike is my girl friends and she doesn't want to spring for wide band sensors, and runs hot. I have a map to richen it up-but think I need to keep it open loop to follow map.
It all depends on the blend of gas. Different blends (stoich) will yield a different AFR. To keep it simple, at a 14.6 stoich .980 would get you just below 14.4 in closed loop. Any richer and you need to go open loop. Like I said earlier, you're chasing your tail trying to cool it down by richening it up. Richening it up will slightly slow down how long it takes to reach a certain temp. A Stage 1 set up does about the same. If you really want to run cooler the best way to approach it is to get rid of the stock cams.
Just kind of wondered...I have a 2012 bike and my PV software and firmware are up to date as of the last (pre 2014 bikes) update. Is there really any reason to do this last update? My PV works great and I don't want to risk screwing it up with new software unless there is a benefit to pre 2014 bikes.
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I would not update without a compelling reason.
If you are pleased with your current status, don't change without a reason.
Just kind of wondered...I have a 2012 bike and my PV software and firmware are up to date as of the last (pre 2014 bikes) update. Is there really any reason to do this last update? My PV works great and I don't want to risk screwing it up with new software unless there is a benefit to pre 2014 bikes.
You won't screw anything up. What makes you think staying current would wreak havoc your cal? I check updates every time I connect the PV to the laptop. If it's an update that doesn't pertain to my cal ID I'll never see it anyway. Stay current with updates, you'll be fine. The boys at DJ wouldn't be putting out updates that would screw up peoples tunes.
You won't screw anything up. What makes you think staying current would wreak havoc your cal? I check updates every time I connect the PV to the laptop. If it's an update that doesn't pertain to my cal ID I'll never see it anyway. Stay current with updates, you'll be fine. The boys at DJ wouldn't be putting out updates that would screw up peoples tunes.
Yes, but--- see post #5481 on page 549 by Dynaulv; and my post #5592 on page 560 for reference for my response to BigTwin.
Log Tuner works fine with the previous versions of WinPV, but at least with WinPV v.1319, the .pvv file produces a result that must be edited in order to produce the calculated new tune from LogTuner.
Therefore, why update until that glitch is fixed unless one needs the 2014 DJ tunes? At least that's been my and many other's experience.
On one laptop with an older version of WinPV, no problems with the LogTuner application developing a new calculated tune; on another laptop with the later version of WinPV, the .pvv file must be edited as described in the referenced posts to effect the correct .pvv file.
IF that glitch has been patched, I stand corrected.
Yes, but--- see post #5481 on page 549 by Dynaulv; and my post #5592 on page 560 for reference for my response to BigTwin.
Log Tuner works fine with the previous versions of WinPV, but at least with WinPV v.1319, the .pvv file produces a result that must be edited in order to produce the calculated new tune from LogTuner.
Therefore, why update until that glitch is fixed unless one needs the 2014 DJ tunes? At least that's been my and many other's experience.
On one laptop with an older version of WinPV, no problems with the LogTuner application developing a new calculated tune; on another laptop with the later version of WinPV, the .pvv file must be edited as described in the referenced posts to effect the correct .pvv file.
IF that glitch has been patched, I stand corrected.
Anyone know if the latest version of WinPV now works with the Log Tuner. I originally upgraded but went back to the older version to more easily use the Log Tuner. I don't believe there's any need to upgrade to the latest version of WinPV unless you own a 2014 bike.
Yes, but--- see post #5481 on page 549 by Dynaulv; and my post #5592 on page 560 for reference for my response to BigTwin.
Log Tuner works fine with the previous versions of WinPV, but at least with WinPV v.1319, the .pvv file produces a result that must be edited in order to produce the calculated new tune from LogTuner.
Therefore, why update until that glitch is fixed unless one needs the 2014 DJ tunes? At least that's been my and many other's experience.
On one laptop with an older version of WinPV, no problems with the LogTuner application developing a new calculated tune; on another laptop with the later version of WinPV, the .pvv file must be edited as described in the referenced posts to effect the correct .pvv file.
IF that glitch has been patched, I stand corrected.
I'm surprised they haven't ditched LT altogether, but happy they haven't. Send them an email and see if they fixed your issue. They usually get right on issue corrections. I run the updates (hardware) because they sometimes add little gee wiz things like live idle adjustment. As far as software glitches you'd need to get with DJ or the vendor that sold it to you and see if they're even aware of it and are working on a fix.
Last edited by stailjim61; Dec 5, 2013 at 04:21 PM.
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