When to use open loop fuel injection on Harley Davidson?
Since Harley only uses narrow band sensors (NBO2) capable of only a very narrow range of Air/fuel ratio (AFR), the ECM can only control the mixture under cruising or very low load conditions. Under all other conditions the ECM switches to Open Loop as described in this article.
What kind of fuel injection does a Harley Davidson have?
In theory Harley’s fuel injection system is still an open-loop system by design. Article courtesy of American Iron Magazine The Harley-Davidson ESPFI system is known as a Speed/Density, Open Loop, Sequential Port Fuel Injection system, that controls both fuel flow, and spark timing. Let’s further explain these terms.
What are the different maps for fuel injection?
There are several different Look-up tables, which allow the ECM to make decisions on fuel delivery and spark timing. For most of us, these are referred to as “Maps.” The Maps that are more or less in continuous use by the ECM are the VE (Volumetric Efficiency) AFR (Air/Fuel Ratio) and the Spark Advance table.
When did closed loop fuel injection come out?
Closed loop operation was introduced with the 2006 Dyna model and all other models in 2007. Sequential Port Fuel Injection – Injector nozzles are positioned in the manifold near the intake valve and are precisely timed to deliver fuel to each cylinder.
In theory Harley’s fuel injection system is still an open-loop system by design. Article courtesy of American Iron Magazine The Harley-Davidson ESPFI system is known as a Speed/Density, Open Loop, Sequential Port Fuel Injection system, that controls both fuel flow, and spark timing. Let’s further explain these terms.
How to calculate the fuel flow per injector?
FUEL INJECTOR CALCULATOR FOR GASOLINE AND E85 The following is a guideline equation for approximating fuel flow per injector based on estimates on engine Horsepower (HP) and Brake Specific Fuel Consumption (BSFC). Fuel Injector Calculator
How long does a fuel injector last in a car?
Every time you crank and run your car, the fuel injector will be used to provide the engine with the power it needs to perform. The fuel injectors on your car will typically last between 50,000 and 100,000 miles.