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  2. Exhaust gas recirculation - Wikipedia

    en.wikipedia.org/wiki/Exhaust_gas_recirculation

    In a typical automotive spark-ignited (SI) engine, 5% to 15% of the exhaust gas is routed back to the intake as EGR. The maximum quantity is limited by the need of the mixture to sustain a continuous flame front during the combustion event; excessive EGR in poorly set up applications can cause misfires and partial burns.

  3. Automotive acronyms and abbreviations - Wikipedia

    en.wikipedia.org/wiki/Automotive_acronyms_and...

    HUD: Automotive head-up display; ICP: Intake cam phaser; IGN: Ignition; ImpAlt: Improved efficiency alternator; ISG: Integrated starter-generator system; ISG-SS: Integrated starter-generator system with start-stop operation; L4: In-line four-cylinder; LDT: Light-duty truck; LDT1: a light-duty truck with a loaded vehicle weight of up to 3750 pounds.

  4. 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.

  5. Glossary of automotive terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_automotive_terms

    Also gas pedal. A throttle in the form of a foot-operated pedal, or sometimes a hand-operated lever or paddle, by which the flow of fuel to the engine (and thereby the engine speed) is controlled, with depression of the pedal causing the vehicle to accelerate. admission stroke See induction stroke. aftermarket air brake 1. A type of brake in which the force that actuates the brake mechanism is ...

  6. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    The CAN protocol was developed by Bosch for automotive and industrial control. Unlike other OBD protocols, variants are widely used outside of the automotive industry. While it did not meet the OBD-II requirements for U.S. vehicles prior to 2003, as of 2008 all vehicles sold in the US are required to implement CAN as one of their signaling ...

  7. DIN 72552 - Wikipedia

    en.wikipedia.org/wiki/DIN_72552

    DIN 72552 is a DIN standard for labeling the electric terminals in automotive wiring. The most frequently used labels are listed in the table below. The most frequently used labels are listed in the table below.

  8. Glider (automobiles) - Wikipedia

    en.wikipedia.org/wiki/Glider_(automobiles)

    The required exhaust gas recirculation (EGR) technology is replaced by an older engine which doesn't have it, called a "pre-EGR engine." [2] Production of heavy duty glider trucks was estimated to be 10,000 in 2015, 4% of all sales. An Obama-era limit on production of 300 units yearly was lifted by the Trump administration.

  9. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    When the MIL is lit, the engine control unit stores a fault code related to the malfunction, which can be retrieved—although in many models this requires the use of a scan tool. This warning light can indicate almost anything from a loose gas cap to a serious knock or fault in the engine.