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Idle issue

Discussion in '2nd Gen 4Runners (1990-1995)' started by Chris907, Nov 24, 2019.

  1. Nov 24, 2019 at 5:58 PM
    #1
    Chris907

    Chris907 [OP] New Member

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    I noticed that my idle whether warm or cold rapidly goes up down up down a few hundred rpm at a time, also have a code 71 for the egr but don’t think that is responsible since it was there way before this problem, and when the temp drops below 30 the runner takes a decent amount of time to start. Are these connected in any way?
     
  2. Nov 24, 2019 at 7:44 PM
    #2
    japhroe

    japhroe New Member

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    ALL STOCK 100%
    Mine goes up and down too. Once warmed up it’s totally goood at 9k rpm idle... yours likely stabilizes too ...after a few minutes?
     
    Chris907[OP] likes this.
  3. Nov 24, 2019 at 8:17 PM
    #3
    Thatbassguy

    Thatbassguy New member? Really??

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    Sounds like it could be a vacuum leak. I would also check that all of the intake tubing is in good shape and secure. We had a similar issue once with a Corolla, and it turned out that a piece of intake tubing had split.

    Good luck!

    Let us know what you figure out.

    Also, welcome to the forum!
     
    Chris907[OP] likes this.
  4. Nov 25, 2019 at 8:20 AM
    #4
    Chris907

    Chris907 [OP] New Member

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    Whether warm or cold it does this where the rpms shift widely
     
  5. Nov 25, 2019 at 8:21 AM
    #5
    Chris907

    Chris907 [OP] New Member

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    Thanks, I’m going to do a more in depth look this week and clean out the tb and iacv to see if that helps. I’ll keep it posted
     
    Thatbassguy[QUOTED] likes this.
  6. Nov 26, 2019 at 8:50 PM
    #6
    Chris907

    Chris907 [OP] New Member

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    So I cleaned the tb and checked for vacuum leaks and couldn’t find any. Still having the issue. Don’t want to break down and bring it to a mechanic
     

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