2011 FLTRU Air/Fuel issue - Road Glide Forums
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post #1 of 28 (permalink) Old 10-07-2011, 09:17 AM Thread Starter
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2011 FLTRU Air/Fuel issue

So... Ive been working with the dealer on a re-curing spark knock issue that I have been experiencing with my bike. Current set up is: VH Pro Pipe HO, VH stage 1 A/C, and the HD stage 1 download. With the help of a new Quality Assurance manager at my dealer, they put the bike on the dyno to check on some things... and almost instantly identified the problem. With my setup the bike is running an air fuel ratio around 15.2. Obviously that needs to come down considerably. The dealer is going to cut me a good deal on a Screaming Eagle Street Performance Tuner and the dyno costs which will help get the bike tuned in.... here is my question:

-Would it be smarter to go with the Screaming Eagle Pro Super Tuner vs. the Screaming Eagle Street Performance Tuner?

-What are the differences/advantages/disadvantages?

-Do both options use the factory narrow band O2 sensors?

-Do you think that the Street Performance Tuner will cover enough ground to get me back on the rich side of things?

Thanks for your input... MIKE

**On a side note... I just realized that maybe I should have posted this in the ECM section... but its also a "trouble shooting" topic... Thanks

Last edited by roadog28; 10-07-2011 at 09:28 AM.
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post #2 of 28 (permalink) Old 10-07-2011, 10:20 AM
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Sounds like your steeler is taking you and your wallet for a ride. If your bike truely has the stage 1 download it souldn't be running a 15.2 A/F ratio.
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post #3 of 28 (permalink) Old 10-07-2011, 10:24 AM
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The original problem needs to be fixed before covering it up with a bandaid.
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post #4 of 28 (permalink) Old 10-07-2011, 12:56 PM Thread Starter
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What could be some potential root causes? It was explained to me that the dealer download can handle certain amounts of "volume" as it pertains to the inflow and outflow... and that my pipe and intake set up pretty much blows that out of the water. Meaning, the HD download can only compensate for so much additional air being introduced. In my case download is not able to add enough fuel to bring my AF in line. Thoughts?

Last edited by roadog28; 10-07-2011 at 12:58 PM.
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post #5 of 28 (permalink) Old 10-07-2011, 04:22 PM
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Sounds like they put the wrong download in.

John not in Saudi any more!!, mortgage in Cal.
2009 Road Glide; HoboCoastie's tank lift, Andrews 48H cams, TTS, Progressive 940's, a bit of chrome.
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post #6 of 28 (permalink) Old 10-07-2011, 04:46 PM Thread Starter
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Thanks for the replies... they checked and re-checked the download, said its good.
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post #7 of 28 (permalink) Old 10-07-2011, 04:50 PM
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the harley downloads only work with street legal harley parts ie the se aircleaner and the street legal slipons. I think you should go with a TTS mastertune.
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post #8 of 28 (permalink) Old 10-07-2011, 07:35 PM
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The Harley street tuner is the only one that keeps your warrenty good.


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post #9 of 28 (permalink) Old 10-07-2011, 08:40 PM
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Quote:
Originally Posted by rc_chico View Post
The Harley street tuner is the only one that keeps your warrenty good.
but it is only good with se street legal parts so with the vh propipe it won't be worth a hoot. I have the street tuner andit worked well with street thunder slip ons and se air cleaner. Not so well with my supertrapp 2.1 supermeg.
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post #10 of 28 (permalink) Old 10-07-2011, 08:50 PM
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First of all you need to fix the ACTUAL problem with the bike.

If you are really intent on covering the real issue up to give you a rideable bike, you need one of the wide band tuners. I prefer the Dynojet Power Commander with the Autotune option. There are other brands that do wide band as well.

No "loaded tune" is going to work on your bike because you have other issues. Only a wide band tuner will be able to read your overly lean condition and add the needed fuel to fix it.

Nothing Harley makes will do what you need. You need to go aftermarket.

Sal - 2010 Vivid Black FLTRX


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