P0171 System too lean fuel trim Code on Honda Accord CRV Civic 2.4 diagnostic tips and explanation

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ความคิดเห็น • 26

  • @creativologist1813
    @creativologist1813 ปีที่แล้ว +11

    Thanks! That was my exact issue (torn air intake hose). I was worried I would need a new fuel pump!

  • @richardp1233
    @richardp1233 11 หลายเดือนก่อน +3

    After looking myself I ended up finding a rip in the same spot. Thanks a bunch!

  • @bryanvalencia2409
    @bryanvalencia2409 8 หลายเดือนก่อน +2

    thanks for the video. my check engine light went on. i been had a problem and did not know what whas the issue. turns out after watching this video, i looked at this part and it was completely ript off !!

    • @AutoScholarwithMrB
      @AutoScholarwithMrB  8 หลายเดือนก่อน

      Glad I could help and thanks for watching!

  • @AlanElBee
    @AlanElBee ปีที่แล้ว +1

    Awesome! You nailed it! Thanks so much for saving me time and $$ in diagnosing my 2009 Accord. Alan

    • @AutoScholarwithMrB
      @AutoScholarwithMrB  ปีที่แล้ว

      Glad to help Alan!

    • @Mighkeyyy
      @Mighkeyyy 7 หลายเดือนก่อน

      What was wrong with your accord? I have a 09 accord with the same code

  • @tombyrne4003
    @tombyrne4003 10 หลายเดือนก่อน +1

    Thank you very much . Mine leaking in very same spot

  • @gregor.potrebujes
    @gregor.potrebujes ปีที่แล้ว +2

    Nice one. My engine seems almost the same (2.4L iVTEC, 189BHP, year 2005), however, mine doesn't have a MAF sensor. And it also doesn't have EGR valve (fun fact heh). I'm experiencing P0171 as the LTFT (long term fuel trim) goes too high... +17% or so... I checked for vacuum leaks with a smoke and there is none! I just replaced the upstream O2 sensor with a new one (Denso) and erased the code. After 100 km or so the code came up again. I also checked for leaks in the exhaust pipe and there are no leaks. I ran out of ideas :/

    • @AutoScholarwithMrB
      @AutoScholarwithMrB  ปีที่แล้ว +2

      Have you checked the PCV valve? If they stick it creates an internal leak to the crankcase.

    • @gregor.potrebujes
      @gregor.potrebujes ปีที่แล้ว +2

      @@AutoScholarwithMrB I'll check that next and also the front engine mount and brake booster... maybe I'll get lucky. Thank you for suggestion.

    • @factotumted
      @factotumted ปีที่แล้ว

      ​@@gregor.potrebujeswere you able to solve your problem? If so, what was it. Thanks

    • @gregor.potrebujes
      @gregor.potrebujes ปีที่แล้ว +1

      @@factotumted @factotumted My car is bifuel and also runs on LPG. The pressure was set too low. And that was the reason for throwing the lean code.

  • @lakeshiamills1454
    @lakeshiamills1454 ปีที่แล้ว +2

    I am having the same problem on my 09 crv. Checked the air filter, checked the hose. Where else would I need to check to see if there is a leak elsewhere in the air flow system?

  • @danw9781
    @danw9781 ปีที่แล้ว +3

    My pvc hose was torn , pvc valve clogged up with oil.

  • @gtgustavo48
    @gtgustavo48 5 หลายเดือนก่อน

    Mr B I got a issue with my 2015 Honda civic ex

  • @javeedniazi4577
    @javeedniazi4577 10 หลายเดือนก่อน +1

    I found the same issue with my Honda CRV. Does anyone know what the part is called?

  • @MrSamPhoenix
    @MrSamPhoenix ปีที่แล้ว

    Nice

  • @jamessurname2285
    @jamessurname2285 ปีที่แล้ว +1

    Common on Honda. Shit rubber and airboxes that are packed in so tight you have to flex hell out of the tube

  • @toddgrant6029
    @toddgrant6029 3 หลายเดือนก่อน

    Code p0301

    • @AutoScholarwithMrB
      @AutoScholarwithMrB  3 หลายเดือนก่อน

      @@toddgrant6029 misfire on cylinder one.

  • @adamyang5581
    @adamyang5581 2 หลายเดือนก่อน

    $3000 worth of work done? Damn might as well just get another car loo