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jbourgeois wrote:
> "jim beam" > wrote in message > news:1110057641.58f56630a503c7d86ca290cf490b466f@t eranews... > >>SoCalMike wrote: >> >>>jbourgeois wrote: >>> >>> >>>>I have been getting an intermittent P0171 code, fuel system too lean, >>>>along >>>>with a P0170 code, fuel compensation value exceeded the specified >>>>range. To >>>>prevent a barrage of useless follow-up questions, here are the specs >>>>of my >>>>car: 1998 Honda Accord LX, 4-cylinder, 123k. New spark plugs and >>>>distributor cap. >>>> >>>>I don't know where to start to find the source of this problem. If it >>>>helps >>>>someone to pinpoint the problem, I have on one or two occasions smelled > > a > >>>>fuel smell while the light was on, and have occasionally had some >>>>hesitation >>>>before accelerating from a dead stop (even catching and almost >>>>stalling once >>>>or twice). The car also occasionally shakes while driving at a normal >>>>speed. >>>> >>>>Thanks for any suggestions about what to do. >>>> >>>> >>> >>>googling "p0171" got me: >>> >>>http://autorepair.about.com/library/faqs/bl903d.htm >>>http://toyotaownersclub.com/forums/i...showtopic=9206 >>> >>>mass air flow sensor? >> >>afaik, honda don't use air flow mass sensors - they use pressure sensors >>& an electronic map of the differential between manifold pressure & >>atmosphere for whichever motor it is. >> >>that code is covered in >>http://www.alldata.com/TSB/24/982426AX.html >>which leads to: >>http://www.hondalac.com/service/Bulletins/x00-018e.pdf >> >>replace regulator & vacuum hoses. >> > > > Before I replace vacuum hose and fuel regulator, I need to know if the O2 > sensor might be the problem. Does anyone know how to check that? Does a > faulty or "lazy" O2 sensor seem like a possible cause for the system too > lean code? > i believe you usually get too rich in that situation. if it were my car, and there was a t.s.b. for exactly the problem i was experiencing, i'd be inclined to foillow the t.s.b.'s service procedure /before/ trying to chase anything else. |
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