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IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

what is this?

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Old 05-05-14, 04:09 PM
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RyPeredo
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Default what is this?
Just curious but saw this plug. its after the throttle body. just wondering what its for or if it is ever used?
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Old 05-06-14, 12:29 PM
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Gville350
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Vacuum source...probably for a Lexus technican to plug something into, or a boost gauge.
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