Power Vision tune adjustment - Road Glide Forums
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post #1 of 5 (permalink) Old 07-15-2016, 05:55 PM Thread Starter
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Power Vision tune adjustment

Hi guys, just wanted to drop a line about what I learned about my power vision tune as it will help others. I have a 2012 RGC that I installed an Andrews 57h cams into about 2 years ago and am using the power vision. The tune they originally sent me was very close but.....I had an annoying hesitation when I would accelerate briskly, a quick increase of throttle, between 2200-2800 RPM it would always hesitate and then take off and go fine but the hesitation was a nuisance. Well, I called Dynojet about this and they told me to add fuel in the acceleration enrichment parameter (which adds fuel for about 1 second like an accelerator pump on a carberator) which I did but it did not help. I did this a couple times (adding fuel to the AE circuit) to no avail. So I ran an auto tune basic and the stumble went completely away. So I read that in auto tune mode it goes into 0 acceleration enrichment so I changed my original tune dyno jet sent me to 0 acceleration enrichment and the hesitation went completely away. I post this in hopes it will help others as it was very frustrating till I figured it out.
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post #2 of 5 (permalink) Old 07-15-2016, 06:37 PM
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Hesitations can be caused by too much fuel, or not enough fuel. Unless you really know what to look, listen, and feel for, it can be really hard to tell which is which. Should Dynojet have known?? Sure they should, but any smart tuner is going to tell you to go rich and try it before you go lean. Pretty hard to damage anything by being a bit to rich, easy to damage stuff by
being too lean.
Dynojet's tunes are very conservative to cover their a$$.

2015 RGU CVO........under continuous change......
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post #3 of 5 (permalink) Old 07-15-2016, 07:02 PM
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I have a '12 RGC as well and I'm piecing together my Stage 1 and so far am going with the Dragos H pipe and a PV, so this is probably gonna be of some help, even if I'm not doing cams. I just need to find an AC I like where I can reroute the breather garbage.

Thanks for the info.
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post #4 of 5 (permalink) Old 10-01-2016, 10:17 AM
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Had my new pipes, ac and PV tune for almost 2 months now. I have yet to run auto tune with my PV but I think I need to. Last few times I've ridden, 2 up or solo, the back half of the engine seems to be running SUPER hot. Maybe I just never noticed it before and my girl hasn't said anything about her feet cooking back there. I know these big bikes naturally run pretty hot.

The bike seems to be running fine still, but I think a few auto tune sessions may do the trick.

What's the usual amount of time to run the auto tune with the PV? 2 full tanks worth?

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post #5 of 5 (permalink) Old 10-01-2016, 02:04 PM
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Quote:
Originally Posted by JDisMe View Post
Had my new pipes, ac and PV tune for almost 2 months now. I have yet to run auto tune with my PV but I think I need to. Last few times I've ridden, 2 up or solo, the back half of the engine seems to be running SUPER hot. Maybe I just never noticed it before and my girl hasn't said anything about her feet cooking back there. I know these big bikes naturally run pretty hot.

The bike seems to be running fine still, but I think a few auto tune sessions may do the trick.

What's the usual amount of time to run the auto tune with the PV? 2 full tanks worth?
I think Dynojet recommends 10-20 minute sessions.
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