GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Idle issue

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Old 08-01-20, 06:57 PM
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Potatwojz
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Default Idle issue

I have a 2000 gs300 and it doesn’t like to idle. It idles are about 500rpm and it’ll drop, go up to 1000rpm, then back to 500. Anybody know what might cause this?
Old 08-01-20, 11:05 PM
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lexo98
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Vacuum leak?
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Potatwojz (08-02-20)
Old 08-02-20, 12:16 AM
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Second the vacuum leak.
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Old 08-02-20, 10:51 AM
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I have this happen on many Toyota's when the battery either dies, or is disconnected and the learned memory in the computer gets cleared. A dirty throttle will stop enough air coming in and idle too low. Try cleaning your throttle. Idle will probably pick back up if the computer was rest to factory specs.
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