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1991 4runner check engine codes 24 and 31

Discussion in '2nd Gen 4Runners (1990-1995)' started by Bryang938, May 29, 2025.

  1. May 29, 2025 at 3:26 PM
    #1
    Bryang938

    Bryang938 [OP] New Member

    Joined:
    May 29, 2025
    Member:
    #47303
    Messages:
    1
    Gender:
    Male
    First Name:
    Bryan
    Vehicle:
    1991 Toyota 4runner
    Hello I have a 1991 4runner with codes 24 and 31. I have replaced almost everything, egr valve, maf sensor, temperature sensor. I have also looked for air leaks, but can't find any. Should I replace the throttle body?
     
  2. Jun 18, 2025 at 8:25 PM
    #2
    negusm

    negusm New Member

    Joined:
    Oct 22, 2019
    Member:
    #11745
    Messages:
    2,313
    Gender:
    Male
    Vehicle:
    2002 4Runner SR5 4WD

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