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  2. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).

  3. Tell-tale (automotive) - Wikipedia

    en.wikipedia.org/wiki/Tell-tale_(automotive)

    A group of tell-tales showing lights for "brake fluid", "stop lamp" and "check engine" Graphical tell-talesA tell-tale, sometimes called an idiot light [1] or warning light, is an indicator of malfunction or operation of a system, indicated by a binary (on/off) illuminated light, symbol or text legend.

  4. Diesel emissions scandal - Wikipedia

    en.wikipedia.org/wiki/Diesel_emissions_scandal

    A tested Porsche Cayenne, emission standard Euro 6, exceeds the limit by 2.4 times at +10 to +16 °C with an average of 191 mg NO x /km after the software update. In addition, the vehicle with a carbon dioxide emissions of 179 g CO 2 /km is permitted, but in real operation on the road, according to DUH, the emissions are on average 241 g CO 2 /km.

  5. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    Diesel engine : NMHC catalyst, NOx reduction catalyst, NOx absorber Particulate matter filter, Exhaust gas sensor, EGR system, VVT system, Boost pressure control, Fuel system. See OBD-II PIDs#Service_09 for an extensive list. Service / Mode $0A lists emission-related "permanent" diagnostic trouble codes stored. As per CARB, any diagnostic ...

  6. U.S. engine maker facing largest Clean Air Act penalty ever ...

    www.aol.com/news/u-engine-maker-facing-largest...

    Engine manufacturer Cummins Inc. has agreed to pay a $1.675 billion penalty for allegedly installing "defeat devices" on approximately 1 million pickup trucks to cheat emissions tests.

  7. OBD-II PIDs - Wikipedia

    en.wikipedia.org/wiki/OBD-II_PIDs

    Engine run time for Auxiliary Emissions Control Device(AECD) 82: 130: 41 Engine run time for Auxiliary Emissions Control Device(AECD) 83: 131: 9 NOx sensor 84: 132: 1 Manifold surface temperature 85: 133: 10 NOx reagent system % 86: 134: 5 Particulate matter (PM) sensor 87: 135: 5 Intake manifold absolute pressure 88: 136: 13

  8. Vehicle emissions control - Wikipedia

    en.wikipedia.org/wiki/Vehicle_emissions_control

    California light and medium duty trucks may also use the c-4 system. While 1979 and 1980 systems are very similar, the 1981 system (2nd generation) will differ in that it may include additional engine control systems (i.e., electronic spark timing, idle speed control, etc.)

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