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well the fast idle thermo valve ,is on the top of the motor right on the intake manifold,it has two screws on the top, let engine warm up , take the screws out. put finger over and gently push ,with engine running. If no air flow replace valve,or unscrew the plastic top of valve, and with sand paper placed face up on a flat surface sand down bottom of valve. This will let the heat reactive part of the valve shut of sooner blocking the excess air from entering the intake manifold and raising idle.

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โˆ™ 2008-05-14 17:52:40
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Q: How do you change the fast idle sensor valve on a 1991 Honda Accord EX?
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