95 s10 2.2 code 23

Discussion in 'Chevy S10 Forum (GMC Sonoma)' started by earnman, Jan 3, 2012.

  1. earnman

    earnman New Member

    ck engine light on code 23 low iat(mat)temp
    problem is i have no iat on this vehicle i cked all intake duct from filter back
    scanner shows -40 degrees for something i have not got?
    any ideas?
  2. earnman

    earnman New Member

    found problem apparently the iat fell out and fan cut wires. took awhile to find wires and place for iat was under shout by radiator

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