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2008 lexus 430 sc engine stumble/hesitation

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06 Oct 2019 16:40 #34055 by This email address is being protected from spambots. You need JavaScript enabled to view it.
2008 lexus 430 sc engine stumble/hesitation was created by This email address is being protected from spambots. You need JavaScript enabled to view it.
i have a 2008 lexus 430 sc when i drive it i get a stumbl/hesitation at about quarter throttle . under hard acceleration no stumble works normally no trouble codes

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06 Oct 2019 16:45 #34056 by Cheryl
Replied by Cheryl on topic 2008 lexus 430 sc engine stumble/hesitation
Throttle position sensor?

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06 Oct 2019 16:52 #34057 by This email address is being protected from spambots. You need JavaScript enabled to view it.
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i checked the throttle position sensor on scanner and was working properly . i did not put it on a scope as of yet

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06 Oct 2019 17:06 #34058 by Cheryl
Replied by Cheryl on topic 2008 lexus 430 sc engine stumble/hesitation
How’s fuel trims

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06 Oct 2019 17:08 #34059 by This email address is being protected from spambots. You need JavaScript enabled to view it.
Replied by This email address is being protected from spambots. You need JavaScript enabled to view it. on topic 2008 lexus 430 sc engine stumble/hesitation
they look good.

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10 Oct 2019 19:28 #34155 by robert.lesaca
Replied by robert.lesaca on topic 2008 lexus 430 sc engine stumble/hesitation
try scoping...i own a 2002 GS300 and only when I scope did i find a hump on the rising and falling waveform, though intermittent. no codes present

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