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    FJ40 2F Engine Idle Issue, not the usual fix, ideas?

    I connect mine using a TEE to a vacuum line going to the intake. A gas engine vacuum is max at idle and as you accelerate it goes down. Pretty simple, but tells a lot.
  2. 1

    FJ40 2F Engine Idle Issue, not the usual fix, ideas?

    One thing these vehicles never came with is a vacuum gauge. I know you said you tried propane method but by having a gauge in you field of view when driving can say a lot. To me without one always kept me guessing.
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