A race tuner software developer borrowed a 2008 harley from one of our employees to tune the 103. Ms531hd harley davidson diagnostic scan tool performance. If you were to purchase an exhaust that is similar in size, shape, volume, and design then remapping the fuel injection may not. Harley davidson has a service bulletin on injector swaps for earlier models. The mighty harley is slowly loosing its carburetor. Rsr fuel injection, the only race proven fuel injection system. Yah, this is not something you hear about being done very often, but it can be and is done on occasion. During this difficult time, we are working hard to maintain our service. Allowing you full tuning access to the terminator x and terminator x max ecu. You bought your new bike and are looking to improve the power and the sound. We are direct partnered with the manufacturers, several of which we are involved at the engineering level. Tuning a modern harley davidson electronic fuel injection system refers to the use of computers and software to produce a fuel optimization map for the enginedesigned to optimize the release of fuel mixtures under varying conditions. One week later of the tuners time and the bike ran marginally.
Speeddensity an electronic control module ecm monitors manifold air pressure. Since then, the factory has followed a slow but steady evolution toward equipping more and more models with efi. Quickly diagnoses loss of power, poor fuel economy, causes of stalling out, hesitation and more. Harleydavidson no longer produces any models with carburetors. Harley davidson 20022010 replacement fuel injectors. Find the features you need in a range of prices to fit any budget. The webs most trusted source for harley davidson fuel injection. Harleys first crack at electronic fuel injection ff1 didnt go over very well.
Easy to use efi controller using load based technology to adjust fuel for popular models like the fat bob, road glide, electra glide, 1200 nightster, etc. If you have the adapter, you can use just about any fuel pressure gauge. Performance fuel tuners for harley davidson revzilla. Plug the connector pair with orange colored wires from the micro. The ms531hd is a professional diagnostic tool for harleydavidson workshops and tuning centers. Here is a power point presentation on the harley fuel injection system and the tuners that were used to tune it.
Dynojet 20012006 harleydavidson softail power commander 5 pcv fuel 15024. The fuel pressure should remain steady 5562 psi at any rpm. Direct replacement harley davidson iwp043 fuel injectors for the following applications. Dynojet power commander pcv fuel injection tuner harley. Fuel injection is a vital part of a motorcycles ability to burn fuel efficiently and control emissions in an everincreasingly ecoconscious world.
Tuning the efi system of a harley davidson motorcycle. Of course, there are reasons to do something as drastic as this. Harley davidson electronic fuel injection efi harley. With the software running on a pc or laptop with usb connection and running windows 7, 8. Rsr fuel injection systems are the most thoroughly tested and proven fuel injection systems for harley vtwins rsr fuel injection harley note. Genuine oem fuel injector for harley davidson motorcycle. To get the most performance out of your bike remapping the fuel injection is a must. Fuel leak on fuel supply fitting under tank 2003 electra glide ultra classic fuel systems hi to all today i got a problem, fuel was leaking heavily out of the fuel supply line fitting under the tank at the chrome sleeve. For those of you who havent noticed or are stuck back in the 80s, a large number of the bikes coming from milwaukee have fuel injection installed. While innovation is seldom met with universal approval chain to beltdrive being a prime example those who were skeptical of the phasing in of electronic fuel injection, or efi, had at least one sound reason for disapproval.
The race tuner software program comes on a cdrom along with a hardware key adapter that allows connecting a pc to the stock ecm. Harley fuel injection modules are an important but oft overlooked piece of the puzzle. With just a setup of pipes installed it is not imperative to remap the fuel curve as it will not run lean enough to cause any damage. But due to high order volume some order processing may be slightly delayed. That means if you own a mid1990s or later harley, chances are. Solid brass adapter and release valve, steel housing 100 psi gauge, stainless steel springs, viton orings, oring lubricant and nylon storage pouch.
Harley electronic fuel injection to carburetor conversion. The harleydavidson espfi system is known as a speeddensity, open loop, sequential port fuel injection system, that controls both fuel flow, and spark timing. Faulty carburetors can often be diagnosed and repaired on the side of the road, while narrow. I thought it might be a good idea to start with informative books on the subject, good books are few and far between on this. That system was used on all the evo efi bikes, as well as the 9901 twincam touring bikes. Since electronic fuel injection efi appeared on harleydavidson baggers in 1995, for many of us, the thought of a computer replacing the carburetors gas and air mixing duties has been a difficult proposition. Including but not limited to, fuel tables, timing tables, idle control, dbw control, boost and nitrous control, and much more. Efi uses these inputs to calculate the right amount of fuel mixture for optimum performance and change the fuel mixture to meet these demands. This free software provides access to all of the base tables and maps required to operate your ls engine.
Electronic fuel injection basics in 1995, harleydavidson began offering electronic fuel injection efi as either standard or optional equipment, and since 2007, all harley models include efi. First thing we would suggest is to test for a harley davidson efi fuel leak. You should be able to rent the fuel adapter that you will need from the dealer. Introducing the terminator x software from holley efi. On the micro efi tuner, there are 2 pairs of injector connectors. Harley fuel injection tuning basics live tech talk kevin baxter pro twin performance duration. Hfp370hdt6 fuel pump with strainer and tank seal harleydavidson dyna super glide fxd, fxd35, fxdidyna super glide sport fxdxi 20022010 replaces 7524504,7524504a,6101604b 5. Harleydavidson introduced electronic fuel injection efi to its product line in 1995. Also could be bad wire or hole in fuel line which is causing bad fuel pressure.
How to program a thunderheart thundermax auto tune. Push button completely releases all fuel through the drain line. You dont need to have a deep understanding of the harley davidson efi system to use mytune. Harleydavidson electronic fuelinjection tuning aids. It would interface with your zumo gps and your harley audio and allow you to speak using your headset through your smart phone while riding i know i know but it is hands free. Tuning a harley electronic fuel injection system harley. Electronic fuel injection efi was originally used on harley davidson motorcycles beginning in the 1995 production year and currently the delphi electronic fuel injection system is used on all. This video is about setting the throttle position sensor and cold idle motor of the magneti marelli fuel injection system used on some harley davidsons from 1995 through 2001. The fuelpak fp3 is the bestselling ecu tuner in the world for harleydavidson motorcycles because it is the most intuitive tool on the market, giving you the power to control every aspect of your motorcycles tune, view live sensor data, calibrate your speedometer, read and clear trouble codes, utilize a live sensor data display, and offers best in industry support from our fp3. Harleydavidson fuel injection basics it is a sad day in hogville. In the alltoocommon world of performance modification, the intake and exhaust tracts are often upgraded without paying much attention to the fueling needs of the engine. Electronic fuel injection efi controllers for all kinds of harley motorcycles. Now, holley efi products power these cars and are dominating the performance world. Fuel moto motorcycle efi tuning, exhaust components.
Rick decided to do a full electronic fuel injection efi to carburetor conversion on chola. You have your new air filter and exhaust system ready to put on the bike, but recognize the need to change the airfuel mixture to take advantage of the increase in air flow into the engine and exhaust flow out. Beginning in 2001, hd switched to a delphiengineered fuelinjection system on the softail, with all subsequent models equipped with efi utilizing the delphi system. The 2008 models have flybywire throttles but are pretty much the same as the 2007 models. We carry more harleydavidson products than any other aftermarket vendor and have them all at the lowest guaranteed prices. As of june 2018 these are no longer being shipped or manufactured by rb racing. Electronic fuel injection efi and performance parts for harley davidson and vtwin motorcycles. Magneti marelli mm designed harleydavidsons first incarnation of fuel injection. Reset harley davidson magneti marelli fuel injection tps.
Screamin eagle performance parts harleydavidson usa. It predates the epa clampdown, so it includes a little info on the ways to tamper with the oem system electronic fuel injection for harley ok so here are some points from the presentation. Installs in seconds using a onepoint connection allowing inline service of the motorcycles fuel injection system. The harley faithful were leery of the electronic technology that replaced the venerable, easytotune carburetor. The webs most trusted source for harleydavidson fuel injection. You could try and ask your mail order or web retailer common tuning questions and you will usually be directed back to a manufacturer for support. Holley efi terminatorxsoftware terminator x software. The system is designed for harleydavidson electronic sequential port fuel injection, espfi systems offered on the following efiequipped models. Includes functions to perform diagnostics of electronic fuel injection modules and others i. Mytune is an easy to use windows program that takes data logged from your bike and generates a tune tailored specifically for your bike.