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  2. OBD-II PIDs - Wikipedia

    en.wikipedia.org/wiki/OBD-II_PIDs

    OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool.. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections.

  3. Harley-Davidson Twin Cam engine - Wikipedia

    en.wikipedia.org/wiki/Harley-Davidson_Twin_Cam...

    Harley-Davidson Twin Cam engine at the Harley-Davidson Museum. The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from 1998 to 2017. Although these engines differed significantly from the Evolution engine, which in turn was derived from the series of single camshaft, overhead valve motors that were first released in 1936, they share a number of characteristics with ...

  4. Engine control unit - Wikipedia

    en.wikipedia.org/wiki/Engine_control_unit

    An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine.

  5. Electronic control unit - Wikipedia

    en.wikipedia.org/wiki/Electronic_control_unit

    An ECU from a Geo Storm. An electronic control unit (ECU), also known as an electronic control module (ECM), is an embedded system in automotive electronics that controls one or more of the electrical systems or subsystems in a car or other motor vehicle.

  6. Harley-Davidson Shovelhead engine - Wikipedia

    en.wikipedia.org/wiki/Harley-Davidson_Shovelhead...

    This gave the new engine an extra 10 horsepower, along with a different appearance. [1] The engine gained the nickname “Shovelhead” because its rocker covers look a little bit like an upside-down coal shovel. [2] While the engine did have problems, it gave Harley-Davidson a 26% sales increase during the early part of its timeline. [3]

  7. Harley-Davidson of Frederick to close secondary shop in ... - AOL

    www.aol.com/harley-davidson-frederick-close...

    Harley-Davidson of Williamsport is known as a secondary retail location and Vantucci's main store, Harley-Davidson of Frederick, is on Urbana Pike in Frederick, Bailey said. That dealership has ...

  8. Harley-Davidson Ironhead engine - Wikipedia

    en.wikipedia.org/wiki/Harley-Davidson_Ironhead...

    Harley-Davidson KHK The ironhead was a Harley-Davidson motorcycle engine , so named because of the composition of the cylinder heads (Iron instead of Aluminium). The engine is a two-cylinder, two valves per cylinder, pushrod V-twin .

  9. Harley-Davidson Milwaukee-Eight engine - Wikipedia

    en.wikipedia.org/wiki/Harley-Davidson_Milwaukee...

    The Harley-Davidson Milwaukee-Eight engine is the ninth generation of "big twin" engines developed by the company, but only Harley's fourth all-new Big Twin in 80 years, first introduced in 2016. These engines differ from the traditional Harley Big Twin engines in that there are four valves per cylinder, totaling eight valves, hence the name.