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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.
As Smokey suggested setting up the logging data and checking for knock events can be helpful to tune those out. The PV is never going to advance timing, .
random question from a Lurker: If the PV will autotune (decrease only) Timing, why can't I increase it a bit (will quick tune do that?) across the whole range, and then let AT decrease timing to where AT does not detect any knock?
i appreciate your insight and ability to explain things.
I can see where DJ would not let PV advance timing due to possible damage.
I'll try,I'm no expert, all I know I've learned here and(FM tech support) and figured out myself. Just trying to pay back the help I got. So I keep things general so no damage done. Quick Tune is good for making changes/adjustments on the fly while out riding without WinPV. But those changes are temporary afik, If you try to load the tune you used QT on into AT, It will probably load the base tune without the changes.I could be wrong. Oldhippie mentioned the pro version of WinPV. At one time there were two settings available Basic/Pro, All you had to do was enable Pro to get all the advanced options. Spark Learn has always been there. Now WinPV only has "normal" setting, Combining Basic and Pro into one.The manual says it's not a good idea to enable 'Spark Learn' at the same time as VE's are being tuned. (In so many words).So it suggests setting VE Learn to 0 then Spark Learn to 10 for starters. However there lies the dilema, Doing that will pull spark when/where knock is detected, BUT your tune has been adjusted to AT settings, 14.6 AFR, 4deg removed from timing for saftey(At 14.6 across the board you should expect a lot of Knock/Detonation,Especally at high load/lug areas)Look at the AFR tables of your starting tune. When the finnished tune you want to run can be quite different i.e. A 14.0 open loop AFR. I'd thought about adding the 4 deg that AT is gonna pull plus a couple more to see if knock detected but learned how to use LT instead (safer IMO). I hope that helps, I'm not that good at explaining things.
I'll try,I'm no expert, all I know I've learned here and(FM tech support) and figured out myself. Just trying to pay back the help I got. So I keep things general so no damage done. Quick Tune is good for making changes/adjustments on the fly while out riding without WinPV. But those changes are temporary afik, If you try to load the tune you used QT on into AT, It will probably load the base tune without the changes.I could be wrong. Oldhippie mentioned the pro version of WinPV. At one time there were two settings available Basic/Pro, All you had to do was enable Pro to get all the advanced options. Spark Learn has always been there. Now WinPV only has "normal" setting, Combining Basic and Pro into one.The manual says it's not a good idea to enable 'Spark Learn' at the same time as VE's are being tuned. (In so many words).So it suggests setting VE Learn to 0 then Spark Learn to 10 for starters. However there lies the dilema, Doing that will pull spark when/where knock is detected, BUT your tune has been adjusted to AT settings, 14.6 AFR, 4deg removed from timing for saftey(At 14.6 across the board you should expect a lot of Knock/Detonation,Especally at high load/lug areas)Look at the AFR tables of your starting tune. When the finnished tune you want to run can be quite different i.e. A 14.0 open loop AFR. I'd thought about adding the 4 deg that AT is gonna pull plus a couple more to see if knock detected but learned how to use LT instead (safer IMO). I hope that helps, I'm not that good at explaining things.
04ctd,
Everything Smokey posted is correct. Unless you have Autotune Pro, you will get much better results using Log Tuner to adjust your timing.
It's a very useful tool and not that difficult to learn.
Advance your timing as you suggested using WinPV, then data log and run the resulting file through Log Tuner . It will decrease timing based on knock sensor events.
nhrider1
By Autotune Pro do you mean the add on wide band sensors and modual that sends WB data to the PV? And does it also have better Spark Learn capabilities? I thought it was just able to pull spark at the same time as Tuning VE's at 13.0 AFR (much safer)
PS I also believe that you would need a build i.e. Cams and compression that would need such a rich mix.
Last edited by Smokey Stover; Dec 1, 2014 at 07:43 AM.
Reason: PS
nhrider1
By Autotune Pro do you mean the add on wide band sensors and modual that sends WB data to the PV? And does it also have better Spark Learn capabilities? I thought it was just able to pull spark at the same time as Tuning VE's at 13.0 AFR (much safer)
PS I also believe that you would need a build i.e. Cams and compression that would need such a rich mix.
I'll jump in for him.... Yes, the Pro tune is the wide band sensors and the DJ Auto Tune module. It has better spark learn in the fact that pro does not retard timing as the basic mode does. Both modes are only able to pull timing and not add to it.
I am tuning my timing to find the upper most limit before knock events and then will dial it down a couple degrees so I am not on the ragged edge. I am using the AT Pro kit as well.
One of the challenges is trying to see all the cells that I have hit during my tuning runs. I know the DJ recommends that you set max VE to 0 but by doing this, you lose the ability to monitor the log and see where you need to make hits.
Would it be an issue to set Max VE to maybe 5 so that I can fill in the green screen with data? My plan would then be to ignore the VE tables as I have those dialed in.
I am tuning my timing to find the upper most limit before knock events and then will dial it down a couple degrees so I am not on the ragged edge. I am using the AT Pro kit as well.
One of the challenges is trying to see all the cells that I have hit during my tuning runs. I know the DJ recommends that you set max VE to 0 but by doing this, you lose the ability to monitor the log and see where you need to make hits.
Would it be an issue to set Max VE to maybe 5 so that I can fill in the green screen with data? My plan would then be to ignore the VE tables as I have those dialed in.
I did not know that, (ya learn something new every day) With LT you could only see the hit counts after loading the data logs into LT.You are on the right track. Seeing the green screen would be great.
With the wide band set up you should be fine, Even be able to use the VE adjustments as well. They should be very small anyways at this point1% 2% I was a bit overwhelmed by it all at first so I worked on small areas instead of the whole table at once. Definatly pull 2 or 3 deg for saftey afterwards. I also did some manual smoothing/blending.And comparing similar tunes tables from FM and DJ.That seemed to really make a strong powerband without surging or flat spots.
Thanks Smokey Stover, that my plan for today. I'll report how it works out.
I was just browsing DJ website trying to figure out what is in the latest Tune database update they pushed out. While there, I noticed something I haven't seen before, an unlock license that would allow you to keep your same PV and move it bike to bike when you change bikes.
It could have been there for years, but I just found it.
Unlock License
Part Number: PV-UL1
Retail Price: $199.00 The Unlock License is a provision thats available to unlock a Power Vision that is married to an ECM that is no longer in possession, such as when a bike is sold or traded in without the Power Vision. This allows the Power Vision to be unlocked and married to a different ECM and can be done in the field (no need to ship the Power Vision). For instructions on how to purchase an "Unlock License", and how to extract your vehicle's information with the Power Vision software required for processing, click on the following link: how to purchase an Unlock License instructions.
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