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    1996 Lexus ES300 3.0L SFI DOHC 6cyl

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    Throttle Air Bypass

    Throttle Air Bypass Operation:

    A computer-controlled valve that regulates the amount of air bypassing the throttle plate to maintain an even idle speed. More air delivers a higher idle and less air, a lower idle. It's used on MFI and TBJ fuel injected engines.

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