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P0172 system to rich bank 1

Discussion in '3rd Gen 4Runners (1996-2002)' started by Bkallen541, Mar 20, 2023.

  1. Mar 20, 2023 at 7:47 PM
    #1
    Bkallen541

    Bkallen541 [OP] New Member

    Joined:
    Mar 20, 2023
    Member:
    #31860
    Messages:
    2
    Gender:
    Male
    First Name:
    Brad
    Vehicle:
    1999 black 4runner
    Lift
    So my 4Runner recently threw the p0172 system to rich bank 1 and I just replaced the fuel injectors and a couple of the vacuum lines I’ve cleaned the mag sensor and replaced the spark plugs already to I’m kinda at a loss of we’re to go next has anybody ever felt with this issue
     
  2. Mar 21, 2023 at 3:23 AM
    #2
    roboturner

    roboturner Dead Eyed

    Joined:
    Nov 4, 2022
    Member:
    #29416
    Messages:
    196
    Colorado
    Vehicle:
    ‘98 NW 3.4L 5MT SR5 | '18 6MT DCSB Tacoma | '00 IJM 3.4L TRD Tacoma

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