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2008 lexus 430 sc engine stumble/hesitation

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06 Oct 2019 15:40 #34055 by dfends@hotmail.com
2008 lexus 430 sc engine stumble/hesitation was created by dfends@hotmail.com
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 15:45 #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 15:52 #34057 by dfends@hotmail.com
Replied by dfends@hotmail.com on topic 2008 lexus 430 sc engine stumble/hesitation
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 16:06 #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 16:08 #34059 by dfends@hotmail.com
Replied by dfends@hotmail.com on topic 2008 lexus 430 sc engine stumble/hesitation
they look good.

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10 Oct 2019 18:28 #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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