95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

Big Screw on throttle body. Idle Adjustment?

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Old 05-17-2004 | 08:42 PM
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FireMan's Avatar
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Question Big Screw on throttle body. Idle Adjustment?

What is the flathead screw on the throttle body on the 3.0? It sits right next to the intake chamber and throttle body. I can't really find any info on it.
Old 05-18-2004 | 06:20 AM
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Marc's Avatar
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Well if it's the one I'm thinking of (it points towards the rad) then it's the idle speed screw, it's abot 3/8"-1/2" in diameter. Clockwise slows idle, counter clockwise increases idle.
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