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  2. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    [citation needed] Volvo had a light labeled "lambda", lambda sond being another name for oxygen sensor. This was done in order to remind the driver to change the oxygen sensor. Some American-built 1973–1976 Chrysler Corporation vehicles had a similar odometer-triggered reminder: "Check EGR", which was reset after service at a Chrysler dealership.

  3. Honda recalls 295,000 vehicles due to software error that ...

    www.aol.com/honda-recalls-295-000-vehicles...

    The recall affects certain 2022-2025 Acura MDX Type-S, 2023-2025 Honda Pilot, and 2021-2025 Acura TLX Type-S vehicles, according to the NHTSA. What to do if you are impacted by the recall

  4. Lean-burn - Wikipedia

    en.wikipedia.org/wiki/Lean-burn

    The heart of the Mitsubishi's MVV system is the linear air–fuel ratio exhaust gas oxygen sensor. Compared with standard oxygen sensors, which essentially are on-off switches set to a single air/fuel ratio, the lean oxygen sensor is more of a measurement device covering the air/fuel ratio range from about 15:1 to 26:1. [19]

  5. OBD-II PIDs - Wikipedia

    en.wikipedia.org/wiki/OBD-II_PIDs

    Oxygen Sensor 5 A: Voltage B: Short term fuel trim 19: 25: 2 Oxygen Sensor 6 A: Voltage B: Short term fuel trim 1A: 26: 2 Oxygen Sensor 7 A: Voltage B: Short term fuel trim 1B: 27: 2 Oxygen Sensor 8 A: Voltage B: Short term fuel trim 1C: 28: 1 OBD standards this vehicle conforms to 1 250 enumerated. See below: 1D: 29: 1 Oxygen sensors present ...

  6. Ignition timing - Wikipedia

    en.wikipedia.org/wiki/Ignition_timing

    Pressure in cylinder pattern in dependence on ignition timing: (a) - misfire, (b) too soon, (c) optimal, (d) too late. In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of the compression stroke.

  7. Catalytic converter - Wikipedia

    en.wikipedia.org/wiki/Catalytic_converter

    The oxygen sensor is the basis of the closed-loop control system on a spark-ignited rich-burn engine; however, it is also used for diagnostics. In vehicles with OBD II, a second oxygen sensor is fitted after the catalytic converter to monitor the O 2 levels. The O 2 levels are monitored to see the efficiency of the burn process. The on-board ...

  8. Variable Cylinder Management - Wikipedia

    en.wikipedia.org/wiki/Variable_Cylinder_Management

    Variable Cylinder Management (VCM) is Honda's term for its variable displacement technology, which saves fuel by using the i-VTEC system to disable one bank of cylinders during specific driving conditions—for example, highway driving. The second version of VCM (VCM-2) took this a step further, allowing the engine to go from 6 cylinders, down ...

  9. Oxygen sensor - Wikipedia

    en.wikipedia.org/wiki/Oxygen_sensor

    The type of oxygen sensor used in most underwater diving applications is the electro-galvanic oxygen sensor, a type of fuel cell, which is sometimes called an oxygen analyser or ppO 2 meter. They are used to measure the oxygen concentration of breathing gas mixes such as nitrox and trimix . [ 9 ]