Power Vision Information Thread
Thanks Jamie. Did you mean to say closed-loop twice in your second sentence? I would expect CLB and adaptive learn to be applied to the closed-loop portion of the map, but I am asking if the open-loop portion of the map can also be affected by the CLB settings and adaptive learn.
__________________
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Intermediate
Joined: Apr 2012
Posts: 29
Likes: 0
From: Europe
VE's keep leaning out
Still wondering why the VE's keep leaning out. I believe I started over like 8 times. Included a screen shot of the delta's between the stock tune and the tune from FM after a couple of datalogs and consecutive tunes. If the HD tune/map is lean from the factury, changing to an open airfilter and V&H short shots, should make the bike run leaner. But now the FM tune is becoming leaner then the stock tune, with a higher sparkadvanced? Anyone any suggestions? I emailed Jamie and he told me to let the PV do his thing. But I am wondering if there might be something I am overlooking. Faulty O2 sensor, leak exhaust...?
Steve
Steve
Cruiser
Joined: Mar 2009
Posts: 228
Likes: 0
From: Texas
Thanks for your help Jamie. I appreciate the time you take to answer our questions and help us learn about this stuff.
Road Master
Joined: Jun 2006
Posts: 871
Likes: 7
From: Manchester, NH
Still wondering why the VE's keep leaning out. I believe I started over like 8 times. Included a screen shot of the delta's between the stock tune and the tune from FM after a couple of datalogs and consecutive tunes. If the HD tune/map is lean from the factury, changing to an open airfilter and V&H short shots, should make the bike run leaner. But now the FM tune is becoming leaner then the stock tune, with a higher sparkadvanced? Anyone any suggestions? I emailed Jamie and he told me to let the PV do his thing. But I am wondering if there might be something I am overlooking. Faulty O2 sensor, leak exhaust...?
Steve
Steve
I will be going through the same thing as soon as my FM headpipe comes in someday.
Member
Joined: Jul 2009
Posts: 4,310
Likes: 1,079
Still wondering why the VE's keep leaning out. I believe I started over like 8 times. Included a screen shot of the delta's between the stock tune and the tune from FM after a couple of datalogs and consecutive tunes. If the HD tune/map is lean from the factury, changing to an open airfilter and V&H short shots, should make the bike run leaner. But now the FM tune is becoming leaner then the stock tune, with a higher sparkadvanced? Anyone any suggestions? I emailed Jamie and he told me to let the PV do his thing. But I am wondering if there might be something I am overlooking. Faulty O2 sensor, leak exhaust...?
Steve
Steve
Stage IV
Joined: Sep 2011
Posts: 4
Likes: 0
From: Norway
CLB question to FuelMoto
Last year I was a bit worried that the PV log of O2 sensors showed that
they were staying high at around 0.8-1.0 a lot of the time, with a deep
and narrow valley down to 0.2-0.3 around every 2-5 seconds, something
like: ---v----v----v----v
That was with a clb of 700mV.
Now this spring I tried with clb 500 mV, and the sensors switch every
second in a nice symmetrical pattern, just like it should,something like:
v^v^v^v^v
If, and I say if, the slow switching at 700 mV is real, I would think
this is not optimal feedback to the ECM, and that 500 mV would give
much better (more frequent switching) feedback, and as a consequence
give PV a much better base for a good tune.
On the other hand, it looks to me that PV (and the ECM) is doing
quite well (small changes within 1-2% of VE) at both settings.
So, is the O2 sensor in reality switching much faster than it looks
in the logs at clb=700mV? (Because the ECM only puts out
data on the bus every 10th to 20th cycle (about) ) Or is the
the o2 sensor indeed switching slower at higher clb, which
suggests to me that using a clb close to 450 mV is good advice?
I have thought about bringing a pc oscilloscope on the bike and
make a T-connection to measure o2 sensors in real time, but
I thought maybe FuelMoto or someone here have already done that and could
give me the right answer to this :-)
they were staying high at around 0.8-1.0 a lot of the time, with a deep
and narrow valley down to 0.2-0.3 around every 2-5 seconds, something
like: ---v----v----v----v
That was with a clb of 700mV.
Now this spring I tried with clb 500 mV, and the sensors switch every
second in a nice symmetrical pattern, just like it should,something like:
v^v^v^v^v
If, and I say if, the slow switching at 700 mV is real, I would think
this is not optimal feedback to the ECM, and that 500 mV would give
much better (more frequent switching) feedback, and as a consequence
give PV a much better base for a good tune.
On the other hand, it looks to me that PV (and the ECM) is doing
quite well (small changes within 1-2% of VE) at both settings.
So, is the O2 sensor in reality switching much faster than it looks
in the logs at clb=700mV? (Because the ECM only puts out
data on the bus every 10th to 20th cycle (about) ) Or is the
the o2 sensor indeed switching slower at higher clb, which
suggests to me that using a clb close to 450 mV is good advice?
I have thought about bringing a pc oscilloscope on the bike and
make a T-connection to measure o2 sensors in real time, but
I thought maybe FuelMoto or someone here have already done that and could
give me the right answer to this :-)
Cruiser
Joined: Jul 2009
Posts: 213
Likes: 3
Hi guys, I just orderd a powervision. I was looking at the maps on dynojets web site and I dont see much there. I thought dynojet would have more maps? I have a 2009 ultra with a 106 big bore kit, 10.5-1 commpression, tman 625 cams, ported heads, ported throttle body and a stock head pipe with strait flow mufflers, no cat. Where would be the best place to start, once I get everything together?
Thanks
Thanks
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Road Captain
Joined: Jun 2006
Posts: 548
Likes: 7
From: Pittsburgh, PA
Hi guys, I just orderd a powervision. I was looking at the maps on dynojets web site and I dont see much there. I thought dynojet would have more maps? I have a 2009 ultra with a 106 big bore kit, 10.5-1 commpression, tman 625 cams, ported heads, ported throttle body and a stock head pipe with strait flow mufflers, no cat. Where would be the best place to start, once I get everything together?
Thanks
Thanks
Road Master
Joined: Jun 2006
Posts: 871
Likes: 7
From: Manchester, NH
Performance vs Economy Mapping
I keep reading about some folks who have developed a map for each situation. To change a fuel moto map for economy would I just make lamda closer to 1 and be done with it; or, reset lamda and then do data runs to establish a new set of VEs?
When I am out touring, I am not in very much stop and go traffic or city driving. When going on spirited rides with the local HOG group I like the extra power.
Am I making any sense or should I just leave well enough alone?
When I am out touring, I am not in very much stop and go traffic or city driving. When going on spirited rides with the local HOG group I like the extra power.
Am I making any sense or should I just leave well enough alone?