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  2. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    The European on-board diagnostics (EOBD) regulations are the European equivalent of OBD-II, and apply to all passenger cars of category M1 (with no more than 8 passenger seats and a Gross Vehicle Weight rating of 2,500 kg, 5,500 lb or less) first registered within EU member states since January 1, 2001 for petrol-engined cars and since January ...

  3. 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.

  4. Electronic control unit - Wikipedia

    en.wikipedia.org/wiki/Electronic_control_unit

    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.

  5. Powertrain control module - Wikipedia

    en.wikipedia.org/wiki/Powertrain_control_module

    It is generally a combined controller consisting of the engine control unit (ECU) and the transmission control unit (TCU). On some cars, such as many Chryslers, there are multiple computers: the PCM, the TCU, and the Body Control Module (BCM), for a total of three separate computers. These automotive computers are generally very reliable.

  6. Engine control unit - Wikipedia

    en.wikipedia.org/wiki/Engine_control_unit

    In 1981, a Delco Electronics ECU was used by several Chevrolet and Buick engines to control their fuel system (a closed-loop carburetor) and ignition system. [10] By 1988, Delco Electronics was the leading producer of engine management systems, producing over 28,000 ECUs per day.

  7. Vehicle identification number - Wikipedia

    en.wikipedia.org/wiki/Vehicle_identification_number

    VIN on a Chinese moped VIN on a 1996 Porsche 993 GT2 VIN visible in the windshield VIN recorded on a Chinese vehicle licence. A vehicle identification number (VIN; also called a chassis number or frame number) is a unique code, including a serial number, used by the automotive industry to identify individual motor vehicles, towed vehicles, motorcycles, scooters and mopeds, as defined by the ...

  8. Nissan USA - Wikipedia

    en.wikipedia.org/wiki/Nissan_USA

    Nissan North America, Inc., doing business as Nissan USA, is the North American headquarters, and a wholly owned subsidiary of Nissan Motor Corporation of Japan.The company manufactures and sells Nissan and Infiniti brand cars, sport utility vehicles and pickup trucks through a network of approximately 1,082 Nissan and 211 Infiniti dealers in the United States, including 187 independent Nissan ...

  9. Variable Cylinder Management - Wikipedia

    en.wikipedia.org/wiki/Variable_Cylinder_Management

    In theory, the closing of all rear bank valves produces an ‘air spring’ effect. However, the reciprocating effect of the piston with closed valves reportedly produces a vacuum condition where oil can get pulled past the piston rings to flood the cylinder. When VCM disengages, the engine then misfires if needing to clear the cylinder of oil.