owners manual Porsche Boxster

owners manual Porsche Boxster - year of production: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 - Porsche Boxster 987 owners manual EN

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text version of content this owner's manual page from owners manual to the vehicle Porsche Boxster, year of production 2004 - 2012:

HowEmissionControlWorksCrankcaseventilation Catalytic converters Whenanautomobileengineisrunning,itusesThroughcrankcaseventilation,undesirableThecatalyticconvertersareefficient”clean-up“ energygeneratedthroughthecombustionofaemissionsfromtheenginecrankcasearenotdevicesbuiltintotheexhaustsystemofthevehicle. mixtureofairandfuel. Dependingonwhetheracarpermittedtoreachtheoutsideatmosphere. TheseThecatalyticconvertersburntheundesirable is driven fast or slowly or whether the engine is coldemissionsarerecirculatedfromthecrankcasetopollutants in the exhaust gas before it is released orhot,someofthefuel(hydrocarbons)maynotbetheairintakesystem. Fromheretheemissionsinto the atmosphere. burnedcompletely,butmaybedischargedintothemixwiththeintakeairandarelaterburnedinthe enginecrankcaseorexhaustsystem. Additionalengine.Theexclusiveuseofunleadedfueliscritically hydrocarbonsmayentertheatmospherethrough importantforthelifeofthecatalyticconvert- evaporationoffuelfromthefueltank. These ers. Therefore,onlyunleadedfuelmustbe hydrocarbons(HC),whenreleasedintotheair, used. contributetoundesirablepollution. Thecatalyticconverterswillbedamagedby: In addition, carbon monoxide(CO)andoxidesof – pushortowstartingthevehicle, nitrogen(NOx)contributetoengineemissions. They,too,areformedduringthecombustion – misfiring of the engine, processanddischargedintotheexhaustsystem. – turning off the ignition while the vehicle is Toreducethesepollutants,yourPorscheis movingor equippedwithapreciselycalibratedfuelinjection – driving until the fuel tank is completely empty, systemtoassureafinelybalancedair/fuelmixture underalloperatingconditions. – byotherunusualoperatingconditions. Donotcontinuetooperateyourvehicleunder Oxygensensor theseconditions,sincerawfuelmightreach Theoxygensensor,installedintheexhaust thecatalyticconverters. Thiscouldresultin pipecontinuouslysensestheoxygencontent overheatingoftheconverters. Federallaw oftheexhaustandsignalstheinformationtoan prohibits use of leaded fuel in this car. electronic control unit. The control unit corrects theair/fuel ratio, so the engine always receives an accuratelymeteredair/fuelmixture. 226Maintenance,CarCare

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year of production from: 2004

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