22re code 25

Discussion in 'General Tech' started by Tkowens8, Jun 7, 2012.

  1. Tkowens8

    Tkowens8 Member

    Joined:
    Feb 2, 2011
    Location:
    Lenoir
    My 89 toyota is throwing a code 25 which is a lean air fuel mixture, I was wondering if this is a common problem and which is the best steps to diagnose the cause seeing how the book says it could be a number of things, when the truck is cold it idles high but runs strong, the warmer it gets it idles lower to the point of almost dying at a stop light if I were to run wide open and just take the truck out of gear it idles extremely low, I can down shift through the gears and it will usually be idling fine when I stop any info on this is greatly appreciated
     
  2. rattlecanpaint

    rattlecanpaint Well-Known Member

    Joined:
    Apr 18, 2005
    Location:
    Winston Salem
    You've probably got a vacuum leak somewhere. Get a can of carb cleaner and spray around the intake system. Where the engine takes off is your vacuum leak.
     

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