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I'm back !! PO171

Discussion in 'Technical Chat' started by Toyota Stan, Feb 22, 2018.

  1. Feb 22, 2018 at 6:00 PM
    #1
    Toyota Stan

    Toyota Stan [OP] Active Member

    Joined:
    Jan 20, 2018
    Member:
    #241838
    Messages:
    36
    Gender:
    Male
    Took Tacoma truck to a mechanic and didn't charge to diagnose.

    Still getting PO171 lean bank issue.

    Have replaced both O2 senors, MAF sensor, fuel filter.

    Mechanic didn't see any Vacuum leaks or hose leaks.


    He said it's a computer issue and I should take to a Toyota dealer to see if they could reset computer ? Or might need a new computer ?


    Could it be a intake gasket leak getting air and computer is confused ?

    Air filter didn't look to dirty but should I replace anyway?


    I'm so over this and being a lean bank issue I'm also not getting good gas mileage.


    Any suggestions ? ugh
     
  2. Mar 5, 2020 at 10:31 AM
    #2
    wsmith9483

    wsmith9483 New Member

    Joined:
    Mar 5, 2020
    Member:
    #321322
    Messages:
    2
    Gender:
    Male
    1997 Tacoma 2.7 4wd
    Know that your not alone having the same issue with my 97 Tacoma 4wd and have no hair left to pull out.
    Ths truck has always been bullet proof until this fiasco
     
  3. Mar 5, 2020 at 11:44 AM
    #3
    Jon M

    Jon M Well-Known Member

    Joined:
    Jun 22, 2009
    Member:
    #18781
    Messages:
    145
    Gender:
    Male
    SE Minnesota
    Vehicle:
    09 Tacoma SR5 TRD Sport w / Towing Pkg
    Is your dipstick nice and sealed?
     

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