https://www.youtube.com/watch?v=oI7TVvG99mE&ab_channel=GarageNoise
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https://www.youtube.com/watch?v=vCe4oM8EPoo&ab_channel=Wheelsboy
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https://www.youtube.com/watch?v=vCe4oM8EPoo&ab_channel=Wheelsboy
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Ethanolbooststheoctanenumberoffuel,whichhelpspreventpre-ignitionknock.Incidentally,theoctaneratingsystemforfuelswasoriginallydevelopedbyPennStatechemistRussellMarkerinthe1920s.Theoctanerating(Anti-KnockIndex,AKI)ofnormalunleadedgasolineintheUnitedStatesis87.Theoctaneratingofpureethanolis100.What'sinterestingisthatwhenethanolisblendedwithgasoline,itperformsasifitsoctaneratingis112,makingethanol...[
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E10andE15
E10andE15areblendsofethanolandgasoline.Thenumberafterthe"E"indicatesthepercentageofethanolbyvolume.
MostofthegasolinesoldintheU.S.containsupto10%ethanol—theamountvariesbyregion.AllautomakersapproveblendsuptoE10intheirgasolinevehicles.
Asof2011,EPAbeganallowingtheuseofE15inmodelyear2001andnewergasolinevehicles.2PumpsdispensingE15mustbelabeled(seeexample).Avehi...[
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比如下面的问题
TheP0158errorcodeona2005ToyotaHighlanderindicatesthatthereisaproblemwiththeoxygensensorcircuitforbank2sensor2.Thissensorislocatedafterthecatalyticconverteronthebankofcylindersthatcontainscylinders2,4,and6.
ThemostcommoncausesofaP0158errorcodeinclude:
Faultyoxygensensor:Theoxygensensoritselfmaybefaulty,oritmayhavebecomecontaminatedwithoilorothersubstances.
Wiri...[
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