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<A href="http://www.techlusion.com/shopping550/html/default.htm" target=_blank>Order
Online </A><p> <font color="#FFFFFF"> “Tuning was finished on both bikes within a
few blocks and couldn’t be easier. Both bikes run perfectly all across the (r.p.m. range)”
HOTROD BIKES - Nov. 2002
“ DFO eliminates the need for expensive
factory re-mapping and quirky downloads.
Installation of the DFO only takes a couple
of basic hand tools and a few minutes for
any V-twin using EFI”
EASYRIDERS - Nov. 2002
“ After installing the DFO, and spending about an hour experimenting with different settings, we were able to eliminate the popping entirely, and smoothed out the throttle response considerably (the bike already had a S.E. Stage2 download). The improvement isn’t something you’d necessarily see on a dyno chart in terms of dramatic h.p. or torque increases but it clearly made the bike a lot more pleasant to ride.” IRONWORKS
- July 2002
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Fuel Injection - harley-davidson - Engineering
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<p>Fuel Injection - harley-davidson
Electronics
Promoting the best of Industry, Technology and Manufacturing in the USA
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The EFI harley-davidson is the same basic unit as the 2004 carbureted version
with a few key changes, like the addition of injectors, sensors, fuel pump
and the “ECU” black box to control it all.
To check the drivability at altitude, we were allowed to test the EFI’s at 4500 ft and then from there we proceeded another 500 ft up into the Black Hills of South Dakota, for a total of almost 1 mile above sea level. One mile high means reduced air pressure and on the day we were there, it was near 100ºF. So the air was really thin. How would the 88 cubic inch EFI "carburet"? We drove the EFI’s in very technical terrain, where precise throttle control was mandatory (unless you wanted to go on your head!). We could not detect any of the carbureted 88 cubic inch’s
characteristic off idle burble, nor was there any sign of altitude induced richness.
The fuel injection seems to adapt to the conditions correctly, reducing the amount
of fuel injected into the combustion chamber. This made the 88 EFI harley-davidson
easier to ride than the carbureted versions we had on hand for comparison. It
looks like the EFI allows the motor to run the way it was designed to. custom
chrome claims up to 10 miles more range per tank at full throttle and 16 additional
miles at more moderate throttle openings. This will somewhat address owner complaints
of poor fuel mileage. <a href="http://www.dobeckperformance.com/#Fuel Injection"> Fuel Injection </a>
<a href="http://www.dobeckperformance.com/#harley-davidson Fuel Injection"> harley-davidson Fuel Injection </a>
<a href="http://www.dobeckperformance.com/#Dobeck"> Dobeck </a>
<a href="http://www.dobeckperformance.com/#TFI"> TFI </a>
<a href="http://www.dobeckperformance.com/#turbocharging"> turbocharging </a>
<a href="http://www.dobeckperformance.com/# import performance"> import performance </a>
<a href="http://www.dobeckperformance.com/#harley-davidson"> harley-davidson </a>
<a href="http://www.dobeckperformance.com/#turbo"> turbo </a>
<a href="http://www.dobeckperformance.com/#Racing"> Racing </a>
<a href="http://www.dobeckperformance.com/#service"> Service </a>
<a href="http://www.dobeckperformance.com/#Dynojet"> Dynojet </a>
<a href="http://www.dobeckperformance.com/#PowerCommander"> PowerCommander </a>
<a href="http://www.dobeckperformance.com/#Honda"> Honda </a>
<a href="http://www.dobeckperformance.com/#harley-davidson"> harley-davidson </a>
<a href="http://www.dobeckperformance.com/#Kawasaki"> Kawasaki </a>
<a href="http://www.dobeckperformance.com/#Suzuki"> Suzuki </a>
<a href="http://www.dobeckperformance.com/#Yamaha"> Yamaha </a>
<a href="http://www.dobeckperformance.com/#photos"> photos </a>
<a href="http://www.dobeckperformance.com/#custom chrome"> custom chrome </a>
<a href="http://www.dobeckperformance.com/#Artic Cat"> Artic Cat </a>
<a href="http://www.dobeckperformance.com/#Honda"> Honda </a>
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The next question would be what happens if the Bosh EFI fails. First off, the
ECU will revert to "fail-safe" mode so you can get back home, so you won't be left out in the "toolies",
however you will loose the ability to adapt to ambient conditions.
There are two parts to the software of the ECU. The first part of the software
controls how the engine runs by regulating the amount of fuel flow through
the injectors by polling a series of sensors. The second part of the software
consists of the diagnostics. The diagnostic software knows what the reading
from the sensors should be and is constantly on the lookout for an anomaly.
When the software detects something thats value is beyond a preset parameter,
it first tries to correct the problem. However if the problem is outside of
its on-board capabilities, it issues a trouble code. A laptop, running the
custom chrome proprietary software, is connected to the 88 cubic inch via a
special cable to the ECU access port, which is hidden behind a plug where the
carbureted version has its choke cable. When hooked up properly and the software
is running, the fault code history can be accessed so the dealer can see what
has happened in the past with the EFI system. <br>
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<td><font color="#FFFFFF">Dobeck Performance Motorcycle Glossary </font>
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<P>If you are looking for any of the following topics:
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<P><LI><font color="#FFFFFF"><A HREF="http://www.dobeckperformance.com/howsitwork/howsitwork_view.asp?cid=9">Fuel Injection</a></font></li>
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<P><LI><font color="#FFFFFF"><A HREF="http://www.dobeckperformance.com/howsitwork/howsitwork_view.asp?cid=27">Fuel Injectors</a></font></li>
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<P><LI><font color="#FFFFFF"><A HREF="http://www.dobeckperformance.com/whatsnew/whatsnew_view.asp?cid=28">motorcycle exhaust</a></font></li>
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<P><LI><font color="#FFFFFF"><A HREF="http://www.dobeckperformance.com/snowmobile/">snowmobile efi systems</a></font></li>
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<P><LI><font color="#FFFFFF"><A HREF="http://www.dobeckperformance.com/motorcycle/bmw/difference.asp">bmw motorcycle fuel injection module</a></font></li>
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<P><LI><font color="#FFFFFF"><A HREF="http://www.dobeckperformance.com/motorcycle/harley/">magneti-marelli fuel injection for harley-davidson</a></font></li>
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<P><LI><font color="#FFFFFF"><A HREF="http://www.dobeckperformance.com/features/features_view.asp?cid=20">motorcycle injection</a></font></li>
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<P><LI><font color="#FFFFFF"><A HREF="http://www.dobeckperformance.com/features/features_view.asp?cid=30">harley fuel module 2005</a></font></li>
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<P><LI><font color="#FFFFFF"><A HREF="http://www.techlusion.com">Motorcycle Fuel Injection</a></font></li>
<p><font color="#FFFFFF"> You can then go through the "Guided Diagnostics" sequence which is a standard troubleshooting diagram converted to electronic which will actually walk the service technician through the steps required to find and fix the problem, going so far as to provide the wiring diagram and pictures of the actual component and even where to put the test meter leads.
The ECU contains "Flash" memory like the Bios of a computer. This allows a custom chrome Dealer to re-flash a new "engine map" to
correct a problem or to allow for performance modifications.
custom chrome has promised to have this technology available to its harley-davidson
dealer network before the 88 cubic inch harley-davidson is released. And they
hope the dealers will use the diagnostic software as just another tool available
to them.
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