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  2. Onboard refueling vapor recovery - Wikipedia

    en.wikipedia.org/wiki/Onboard_refueling_vapor...

    The purge valve controls the purge vapor purge line, through which the manifold vacuum pulls air through the vapor storage device and purges it of fuel vapors. The electronic control unit (ECU) controls the opening and closing of this valve. [8] [dead link ‍]

  3. Crankcase ventilation system - Wikipedia

    en.wikipedia.org/wiki/Crankcase_ventilation_system

    The crankcase air outlet, where the PCV valve is located, is generally placed as far as possible from the crankcase breather. For example, the breather and outlet are frequently on opposite valve covers on a V engine, or on opposite ends of the valve cover on an inline engine. The PCV valve is often, but not always, placed at the valve cover ...

  4. Vehicle emissions control - Wikipedia

    en.wikipedia.org/wiki/Vehicle_emissions_control

    Fuel vapor storage canister for a Peugeot 205. Evaporative emissions are the result of gasoline vapors escaping from the vehicle's fuel system. Since 1971, all U.S. vehicles have had fully sealed fuel systems that do not vent directly to the atmosphere; mandates for systems of this type appeared contemporaneously in other jurisdictions.

  5. Nissan VK engine - Wikipedia

    en.wikipedia.org/wiki/Nissan_VK_engine

    Nissan/Infiniti VK56VD Engine. The VK56VD is a 5,552 cc (5.6 L; 338.8 cu in) 32-valve, DOHC, Direct Injection Gasoline aluminum-alloy V8 and features Nissan's latest VVEL (Variable Valve Event & Lift System). The direct injection system provides better wide-open throttle performance and improved fuel economy and emissions performance by ...

  6. Motronic - Wikipedia

    en.wikipedia.org/wiki/Motronic

    The ML 2.1 system integrates an advanced engine management with 2 knock sensors, provision for adaptive fuel & timing adjustment, purge canister control, precision sequential fuel control and diagnostics (pre OBD-1). Fuel enrichment during cold-start is achieved by altering the timing of the main injectors based on engine temperature.

  7. Nissan MR engine - Wikipedia

    en.wikipedia.org/wiki/Nissan_MR_engine

    The MR20DD is a 2.0 L (1997 cc) engine developed by Nissan with direct injection and twin variable valve timing control. The MR20DD engine is "SU-LEV" certified in Japan, and produces 108 kW (145 hp; 147 PS) at 5600 rpm and 155 lb⋅ft (210 N⋅m) of torque at 4400 rpm in its first permutation, with a 11.2:1 compression ratio. [ 2 ]